WO200066487-A1 -- EP921585-A2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  SCHUESSLER M,  STROBEL B,  WIELAND S,  ZUR MEGEDE D;  WO1998008771-A2   ;  US6641625-B1 -- EP112613-A   ENGELHARD MINERALS CORP (ENGH);  EP312757-A   ;  EP361648-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J,  TWIGG M V;  EP600621-A1   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  GB1060166-A   ;  GB1408560-A   SHELL INT RES MIJ NV (SHEL);  VAN LUOKEREN C N (VLOO-Individual);  GB2084894-A   ;  GB2179366-A   BRITISH PETROLEUM CO PLC (BRPE)   FIDDLER A S,  MAUNDER A D;  GB2268322-A   ROLLS ROYCE & ASSOC LTD (RORO)   GARDNER F J;  JP06211501-A   ;  US1366176-A   ;  US1375932-A   ;  US1797426-A   ;  US2051363-A   ;  US2220849-A   ;  US2759805-A   ;  US2795559-A   ;  US3014787-A   ;  US3069348-A   ;  US3159450-A   ;  US3180813-A   ;  US3216782-A   ;  US3216783-A   ;  US3278452-A   ;  US3288646-A   ;  US3334971-A   ;  US3367882-A   ;  US3375140-A   ;  US3387942-A   ;  US3395004-A   ;  US3397028-A   ;  US3438759-A   ;  US3446672-A   ;  US3446674-A   UNITED TECHNOLOGIES CORP (UNAC);  US3451949-A   ;  US3477942-A   ;  US3499797-A   TEXAS INSTR INC (TEXI);  US3516807-A   TEXAS INSTR INC (TEXI);  US3524720-A   ;  US3531263-A   UTD AIRCRAFT CORP (UNAC);  US3541729-A   CANADIAN GENERAL ELECTRIC CO (GENE);  US3585078-A   ;  US3607419-A   UNITED AIRCRAFT CORP (UNAC);  US3615850-A   GENERAL ELECTRIC CO (GENE);  US3619144-A   TEXAS INSTR INC (TEXI);  US3645701-A   LUMMUS CO (LUMM);  US3649360-A   UNITED AIRCRAFT CORP (UNAC);  US3666423-A   TEXACO INC (TEXC);  US3666682-A   TEXACO INC (TEXC);  US3669751-A   RICHMAN PD (RIC-Individual);  US3718506-A   ;  US3729898-A   CHEM CONSTR CORP (CCCO);  US3731071-A   TEXACO INC (TEXC);  US3787038-A   N-I INST PRIRODNITSCH GAS (NAT-Non-standard);  US3796547-A   TEXACO INC (TEXC);  US3909299-A   UNITED TECHNOLOGIES CORP (UNAC)   CORRIGAN T J;  US3920416-A   NAT AERO & SPACE ADMIN (USAS);  US ENERGY R & D ADMIN (USAT);  US3932147-A   JAPAN GASOLINE CO LTD (JAGA); 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 US4125090-A   TOYOTA JIDOSHA KK (TOYT);  US4140493-A   PHILLIPS PETROLEUM CO (PHIP)   JOHNSON M M,  NOWACK G P;  US4145405-A   CONTINENTAL OIL CO (CONO)   GORIN E;  US4153671-A   NALCO CHEM CO (NALC)   CLEMENTS P,  BASILA M R,  BARRY J J;  US4155987-A   ;  US4162290-A   PULLMAN INC (PULL);  US4178758-A   TEXACO DEV CORP (TEXC);  US4181503-A   UNITED TECHNOLOGIES CORP (UNAC)   LESIEUR R R,  SETZER H J,  HAWKINS J R;  US4182795-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S,  DHARIA D J;  US4183369-A   THOMAS R E (THOM-Individual)   THOMAS R E;  US4184322-A   TEXACO DEV CORP (TEXC);  US4191540-A   CHEVRON RES CO (CALI)   MITCHELL D S,  SAGEMAN D R;  US4199545-A   ;  US4203950-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4205044-A   TECNIMONT SPA (TECN-Non-standard);  US4212817-A   LINDE AG (LINM);  US4216198-A   BILLINGS ENERGY CORP (BILL-Non-standard);  SIMONS H M (SIMO-Individual)   SIMONS H M;  US4224298-A   ROBINSON L F (ROBI-Individual)   ROBINSON L F;  US4229418-A   ;  US4233179-A   CATALYSTS & CHEM INC (CACH);  UNITED CATALYSTS INC (UNCA-Non-standard);  US4233180-A   CATALYSTS & CHEM INC (CACH);  UNITED CATALYSTS (UNCA-Non-standard);  US4233276-A   STANDARD OIL CO INDIANA (STAD)   D'SOUZAG J,  RADFORD H D;  US4236941-A   ;  US4240805-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4242105-A   ;  US4246235-A   ;  US4259294-A   SHELL INT RES MIJ BV (SHEL);  US4259312-A   ;  US4259414-A   RCA CORP (RADC)   WILLIAMS R;  US4261964-A   ;  US4277444-A   INST FRANCAIS DU PETROLE (INSF);  US4293315-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4328008-A   TEXACO DEV CORP (TEXC)   MUENGER J R,  CHILD E,  BRENT A;  US4328856-A   CORNING GLASS WORKS (CORG)   CUNNINGHAM G M;  US4337170-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4338292-A   TEXACO INC (TEXC)   DURANLEAU R C,  GATES W C;  US4341737-A   LUMMUS CO (LUMM)   ALBANO J V,  FRIEDMAN G;  US4343624-A   CATERPILLAR TRACTOR CO (CATE);  BELKE W H (BELK-Individual)   BELKE W H,  GRIM G B;  US4353712-A   TEXACO DEV CORP (TEXC)   ARMION C P,  CHILD E T,  RICHTER N,  BRENT A,  REYNOLDS B,  CROUCH W B;  US4355003-A   ;  US4365006-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S;  US4371379-A   TEXACO DEV CORP (TEXC)   ARMION C P,  CHILD E T,  RICHTER N,  BRENT A,  REYNOLDS B,  CROUCH W B;  US4372920-A   AMMONIA CASALE SA (CASA)   ZARDI U;  US4390347-A   TEXACO DEV CORP (TEXC)   DILLE R M,  ROBIN A M,  MIDDLETON L R,  BRENT A;  US4391617-A   ;  US4391794-A   SILBERRING L (SILB-Individual)   SILBERRING L;  US4392869-A   TEXACO DEV CORP (TEXC)   ARMION C P,  CHILD E T,  RICHTER N,  BRENT A,  REYNOLDS B,  CROUCH W B;  US4402711-A   ;  US4405562-A   AMMONIA CASALE SA (CASA)   ZARDI U,  COMANDINI E;  US4405593-A   METALLGESELLSCHAFT AG (METG)   SCHIAUER J,  FISCHER H,  KRIEBEL M;  US4420462-A   CLYDE R A (CLYD-Individual)   CLYDE R A;  US4430096-A   ;  US4436711-A   SHELL OIL CO (SHEL)   OLSON D C;  US4436793-A   ENGELHARD CORP (ENGH)   ADIHART O J;  US4442020-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4454207-A   US DEPT ENERGY (USAT)   FRAIOLI A V,  YOUNG J E;  US4462928-A   ;  US4464444-A   HITACHI LTD (HITA)   MIKAWA H;  US4478793-A   UOP INC (UNVO)   VICKERS A G;  US4491456-A   TEXACO DEV CORP (TEXC)   SCHLINGER W G;  US4504447-A   WESTINGHOUSE ELECTRIC CORP (WESE);  US DEPT ENERGY (USAT)   SPURRIER F R,  DEZUBAY E A,  MURRAY A P,  VIDT E J;  US4505232-A   HITACHI LTD (HITA);  BABCOCK-HITACHI KK (HITG)   KIRIHARA S,  DOI H,  ASANO C,  SUKEKAWA M,  SAKAGUCHI Y;  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  US4530886-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4532192-A   ENERGY RES CORP (ENER-Non-standard);  MITSUBISHI DENKI KK (MITQ)   BAKER B S,  GHEZEAYAG H G;  US4553981-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4563267-A   BADGER CO INC (BADG)   GRAHAM J J,  KINZLER D D,  HUNT E P;  US4569890-A   ;  US4578370-A   UOP INC (UNVO)   GREENWOOD A R;  US4581157-A   IMPERIAL CHEM IND PLC (ICIL)   TWIGG M V;  US4590044-A   SHELL INT RES MIJ BV (SHEL)   MOS A L,  BUKKEMS F H J;  US4604275-A   ;  US4618451-A   IMPERIAL CHEM IND PLC (ICIL)   GENT C W;  US4626521-A   NAT DISTILLERS & CHEM CORP (NADI)   MURIB J H;  US4636371-A   ;  US4642042-A   ;  US4642272-A   INTER FUEL CELLS CO (ITFU-Non-standard)   SEDERQUIST R A;  US4650651-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4657828-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAJIMA H;  US4659634-A   STRUTHERS R C (STRU-Individual)   STRUTHERS R C;  US4666680-A   FLUOR CORP (FLUO)   LEWIS J L;  US4670357-A   INT FUEL CELLS CORP (ITFU)   TAYLOR W A;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US4678600-A   HALDOR TOPSOE AS (TOPS);  STAHL H O (STAH-Individual);  EPRI ELEC POWER RES (EPRI-Non-standard)   STAHL H O,  ROSTRUPNIE J R;  US4678723-A   INT FUEL CELLS CORP (ITFU)   WERTHEIM R J;  US4681701-A   SHELL INT RES MIJ BV (SHEL)   SIE S T;  US4686157-A   SANYO ELECTRIC CO (SAOL);  MIYAKE Y (MIYA-Individual)   MIYAKE Y,  NISHIOKA M,  ITO Y;  US4690690-A   IMPERIAL CHEM IND PLC (ICIL)   SMITH A S,  DOY R J,  LIMBACH A P; 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 STAHL H O (STAH-Individual);  EPRI ELEC POWER RES (EPRI-Non-standard)   STAHL H O,  ROSTRUPNIE J R;  US4835072-A   INT FUEL CELLS CORP (ITFU)   GRASSO A P,  VOGEL W M;  US4836831-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J;  US4838020-A   MITSUBISHI DENKI KK (MITQ)   FUJITSUKA M;  US4838897-A   HITACHI LTD (HITA)   AMANO Y,  YOKOYAMA E,  OOYACHI H;  US4839247-A   INT FUEL CELLS CORP (ITFU)   LEVY A H,  VANDINE L L,  TROCCIOLA J C;  US4841723-A   GENERAL ELECTRIC CO (GENE)   COFFINBERR G A,  LAU M M;  US4842844-A   BOEING CO (BOEI)   HARRIS W G,  SILVA D J;  US4844837-A   ENGELHARD MINERALS CORP (ENGH);  US4847051-A   INT FUEL CELLS CORP (ITFU)   PARENTI E K;  US4849187-A   TOYO ENG CORP (TOXS)   UOZU H,  NAITOH A,  NUMAGUCHI T;  US4855192-A   INT FUEL CELLS CORP (ITFU);  INTE FUEL CELLS COR (ITFU-Non-standard)   GRASSO A P;  US4859545-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W,  VARTANIAN G;  US4861347-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  SULJAK G T;  US4865624-A   NIPPON SANSO KK (NIIO)   OKADA H; 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 US4923768-A   FUJI ELECTRIC MFG CO LTD (FJIE)   KANEKO H,  NISHIGAKI H;  US4925456-A   ;  US4935037-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SEIKI N,  HANZAWA A;  US4943493-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G;  US4946750-A   KTI GROUP BV (KTIK-Non-standard);  KINETICS TECHN INT (KINE-Non-standard);  US4952380-A   ;  US4971601-A   TEXACO INC (TEXC)   NAJJAR M S,  GATES W C;  US4973528-A   INT FUEL CELLS CORP (ITFU)   SANDERSON R A;  US4973529-A   INT FUEL CELLS SOUT (LTFU-Non-standard)   GRASSO A P,  VOGEL W M,  TAYLOR A,  DUFNER B F;  US4976747-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  LESIEUR R R;  US4985231-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US4988283-A   FUJI ELECTRIC MFG CO LTD (FJIE)   NAGASAWA M,  MIWA H;  US4988580-A   TOYO ENG CORP (TOXS)   OHSAKI K,  SHIMA K,  OSAKI K,  OKADA M;  US4993368-A   ARMADA INVEST GRP (ARMA-Non-standard)   JONES H P,  WOODWARD R M;  US4994331-A   INT FUEL CELLS CORP (ITFU);  COHEN R (COHE-Individual)   COHEN R;  US4999029-A   BASF AG (BADI);  LUETH G (LUET-Individual)   LUETH G,  BECKER R,  HORN R K,  KEMPE U,  VODRAZKA W;  US4999133-A   BANQUY D L (BANQ-Individual);  FOSTER WHEELER CORP (FOSX)   BANQUY D L;  US5000926-A   MITSUBISHI GAS CHEM CO INC (MITN);  MITSUBISHI HEAVY INDS (MITO)   MURAYAMA K,  KUWA M;  US5004592-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  TWIGG M V;  US5006131-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US5009967-A   INT FUEL CELLS CORP (ITFU);  UNITED TECHNOLOGIES CORP (UNAC)   SCHEFFLER G W;  US5011625-A   KELLOGG CO M W (PULL)   LEBLANC J R;  US5011670-A   AIR PROD & CHEM INC (AIRP)   DAVIS R A,  NICHOLAS D M,  SMITH D D,  WANG S I,  WRIGHT R A;  US5013617-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W;  US5019356-A   ING SILBERRING AG (SILB-Non-standard);  SILBERRING L (SILB-Individual)   SILBERRING L;  US5019463-A   YAMAHA HATSUDOKI KK (YMHA)   MATSUBARA H,  MIZUNO Y,  HANAJIMA T;  US5023151-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B,  VARTANIAN G,  MATSUZAWA K;  US5026536-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENTER (PETR-Non-standard);  ZH SEIKIYU SANGYO KASSEI (SEKI-Non-standard)   SHIOIRI T,  SATAKE S,  SEKIDO Y,  FUJISOU T,  OBUCHI A,  KATO H;  US5030440-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J,  TWIGG M V;  US5030661-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US5032365-A   MITSUBISHI DENKI KK (MITQ)   ITO N,  TSURU K,  AONO A;  US5034287-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US5035867-A   INST FRANCAIS DU PETROLE (INSF)   DANG V,  HUIN R,  EUZEN J P;  US5039510-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  TWIGG M V;  US5043232-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B,  TANRIKUT Y B;  US5045297-A   ;  US5045414-A   INT FUEL CELLS CORP (ITFU)   BUSHNELL C L,  DAVIS C L;  US5051244-A   UOP (UNVO)   DUNNE S R,  REBER R A;  US5059494-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G,  LANDAU M B;  US5064732-A   INT FUEL CELLS CORP (ITFU)   MEYER A P;  US5064733-A   GAS RES INST (GASR-Non-standard)   KRIST K,  SAMMELLS A F;  US5071719-A   HALDOR TOPSOE AS (TOPS)   ROSTRUPNIE J R,  JORN E;  US5079105-A   ASEA BROWN BOVERI A (ALLM)   BOSSEL U;  US5080875-A   HWT GES HYDRID WASS (HWTH-Non-standard)   BERNAUER O;  US5084363-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US5087271-A   TEXACO INC (TEXC)   STELLACCIO R J,  DACH M M;  US5092121-A   ;  US5093178-A   ;  US5096470-A   BOC GROUP PLC (BRTO)   KRISHNAMUR R;  US5096674-A   FUJI ELECTRIC MFG CO LTD (FJIE)   SHINKAI H;  US5098690-A   UOP (UNVO)   KOVES W J;  US5106390-A   AMER POWER & WASTE (AMPO-Non-standard)   BEIERLE F P,  MAZZAWI M;  US5106590-A   DAVY MCKEE LONDON LTD (POGC)   HOPPER A,  HILL G,  DUNSTER M;  US5110559-A   HITACHI LTD (HITA)   KONDO Y,  AMANO Y,  KIMURA S,  HORIUCHI S;  US5112578-A   MITSUBISHI GAS CHEM CO INC (MITN)   MURAYAMA K,  YAMAGUCHI M,  NAKAMURA T;  US5122299-A   KELLOGG CO M W (PULL)   LEBLANC J R;  US5132174-A   INT FUEL CELLS CORP (ITFU)   ROMANOWSKI W E,  KOCUM F A;  US5141823-A   VICKERS SHIPBUILDING & ENG (VICS)   WRIGHT B J,  SEYMOUR C M,  ADAMS V W,  CATCHPOLE J P;  US5143800-A   WESTINGHOUSE ELECTRIC CORP (WESE)   REICHNER P,  GEORGE R A,  HOOVER D Q,  SHOCKLING L A;  US5149600-A   PETRO ENERGY CENT (PETR-Non-standard);  SEKIYU SANGYO KASSEI (SEKI-Non-standard);  SHOWA SHELL SEIKIYU KK (SHEL)   YAMASE O,  YOSHIZAWA S,  MIURA T;  US5152975-A   TEXACO DEV CORP (TEXC)   FONG W C F,  CHAN H C,  SUGGITT R M,  QUINTANA M E;  US5156821-A   ;  US5156926-A   MTU FRIEDRICHSHAFEN AG (MOTU)   LEMOINE J;  US5164163-A   KOBE SEIKO SHO KK (KOBM)   AOKI M,  IMOTO Y,  SUGIMURA H,  OTANI K;  US5181937-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US5193635-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANAJIMA T,  MATSUBARA H;  US5198310-A   INST GAS TECHNOLOGY (IGTE)   FLEMING D K,  REX R C;  US5199961-A   TOYO ENG CORP (TOXS)   OHSAKI K,  NAITO A,  SHIMA K;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5202195-A   INT FUEL CELLS CORP (ITFU)   STEDMAN J K,  TROCCIOLA J C;  US5207185-A   GREINER L (GREI-Individual)   GREINER L,  MOARD D M;  US5209908-A   ;  US5213912-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R,  SEDERQUIST R A,  OLESEN O L;  US5221586-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI);  TOKYO GAS CO LTD (TOLG);  OSAKA GAS CO LTD (OSAG);  TOHO GAS KK (TOHG)   MORIMOTO H,  HATO,  HATORI S,  KOBAYASHI K,  UEMATSU H,  HIKITA T,  SHINOZAKI K,  NAKAGAWA S;  US5226928-A   TOKYO ELECTRIC POWER CO (TOEP);  KOBE SEIKO SHO KK (KOBM)   MAKABE T,  SATO H,  HAGIWARA A,  AOKI M,  SUGIMURA H,  KAWABATA T;  US5229102-A   MEDALERT INC (MEDA-Non-standard)   MINET R G,  TSOTSIS T T;  US5229222-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5229345-A   ;  US5235846-A   INT FUEL CELLS CORP (ITFU)   FANCIULLO S;  US5242673-A   MASSACHUSETTS INST TECHNOLOGY (MASI)   FLYTZANI-STEPHANOPOULOS M,  HU Z;  US5245110-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P,  FRALEY L D;  US5248566-A   US DEPT ENERGY (USAT)   KUMAR R,  AHMED S,  KRUMPELT M,  MYLES K M;  US5248567-A   TOSHIBA KK (TOKE)   TAKASHI A,  TETSUYA F,  MOTOHIRO T,  MASAHIRO A,  YUJI N,  SATOSHI S;  US5250270-A   KELLOGG CO M W (PULL)   NOE S A;  US5260143-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5260640-A   US DEPT ENERGY (USAT)   CARABETTA R A,  STAATS G E,  CUTTING J C;  US5265635-A   TEXACO INC (TEXC)   MARSH G,  GIAMMATTEO P J,  TROCINO R J;  US5271916-A   GENERAL MOTORS CORP (GENK)   GUANTE J,  VANDERBORGH N E,  NGUYEN T V;  US5275632-A   INT FUEL CELLS CORP (ITFU)   CORRIGAN T J;  US5290641-A   FUJI ELECTRIC MFG CO LTD (FJIE)   HARASHIMA K;  US5299536-A   MOARD D (MOAR-Individual);  GREINER L (GREI-Individual)   GREINER L,  MOARD D;  US5300275-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US5302470-A   OSAKA GAS CO LTD (OSAG);  US5308456-A   INT FUEL CELLS CORP (ITFU)   OLESEN O L,  KUNZ H R,  SEDERQUIST R A;  US5316747-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  TALABA M,  MCNEILLY L,  WATKINS D S,  LINES D A;  US5326550-A   UNIV BRITISH COLUMBIA (UYBR)   ADRIS A M,  GRACE J R,  LIM C J,  ELNASHAIE S S;  US5330727-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SCHROLL C R,  LESIEUR R R;  US5330857-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SEDERQUIST R A,  SMITH M J,  FARRIS P J;  US5335628-A   AQUA CHEM INC (AQAC)   DUNBAR W R;  US5340663-A   INT FUEL CELLS CORP (ITFU)   BUSWELL R F,  VARTANIAN G;  US5341313-A   ;  US5344721-A   TOSHIBA KK (TOKE)   MUNEUCHI A,  MURATA K;  US5346778-A   ENERGY PARTNERS INC (ENER-Non-standard)   EWAN J M,  MISIASZEK S M,  ALESSI D P;  US5346779-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   NAKAZAWA K;  US5360679-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US5362453-A   UHDE GMBH (UHDE)   MARSCH H;  US5366704-A   UOP (UNVO)   THRONDSON R L,  PETERS K D,  KOVES W J;  US5366818-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  WATKINS D S,  PRATER K B;  US5366819-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  HARTVIGSEN J J;  US5366820-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5366821-A   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  US5380600-A   HALDOR TOPSOE AS (TOPS)   HANSEN T,  JORN E;  US5382271-A   IND TECHNOLOGY RES INST (ITRI)   CHENG Y,  NG M L,  YOUNG M;  US5401589-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  US5403366-A   TEXACO DEV CORP (TEXC)   LEININGER T F,  ROBIN A M,  WOLFENBERGER J K,  SUGGITT R M;  US5419978-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B;  US5421840-A   EXXON RES & ENG CO (ESSO)   TAYLOR J H,  SAY G R;  US5429809-A   HALDOR TOPSOE AS (TOPS)   STAHL H O,  TOPSOE H F A;  US5432021-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5436086-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   SEYMOUR C M,  DAMS R A D;  US5441546-A   MOARD D (MOAR-Individual);  GREINER L (GREI-Individual)   MOARD D,  GREINER L;  US5441819-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5441821-A   BALLARD POWER SYSTEMS INC (BLRD)   GORBELL B N,  MERRITT R D;  US5447702-A   KELLOGG CO M W (PULL)   HENNINGSEN G B,  CAMPBELL W M;  US5451249-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  LESIEUR R R,  SANDELLI G J,  SPIEGEL R J,  TROCCIOLA J C,  HEALY H C;  US5456889-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  TALABA M,  MCNEILLY L,  WATKINS D S,  LINES D A;  US5458808-A   TEXACO INC (TEXC)   FONG W F,  SUGGITT R M,  WILSON R F;  US5458857-A   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  US5461864-A   CATALYTICA INC (CATA-Non-standard);  TANAKA KIKINZOKU KOGYO KK (TANI)   DALLA BETTA R A,  SHOJI T,  TANAKA S;  US5462358-A   AT & T IPM CORP (AMTT)   WERNER W V;  US5462719-A   ATLANTIC RICHFIELD CO (ATLF)   LITCHFIELD J F,  PEDERSEN M J,  SAMPATH V R;  US5464606-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  BUSWELL R F,  CLAUSI J V;  US5470360-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A;  US5470670-A   MATSUSHITA DENKI SANGYO KK (MATU)   GAMO T,  HATOH K,  NIIKURA J,  YASUMOTO E,  HADO K;  US5470671-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  LAMONT G J,  BASURA V,  VOSS H H,  WILKINSON D P;  US5472986-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P;  US5482680-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5484576-A   BAYER AG (FARB)   LANGER R,  BUYSCH H,  WAGNER P;  US5484577-A   BALLARD POWER SYSTEM INC (BLRD)   LEAVITT S L,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US5486313-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   DE JONG K P,  SCHOONEBEEK R J,  VONKEMAN K A,  LEDNOR P W,  OUD A E M,  VAN DER ZWET G P;  US5492682-A   SAES GETTERS SPA (SAES)   SUCCI M,  SOLCIA C,  DARCY L;  US5496531-A   EXXON RES & ENG CO (ESSO)   SAY G R,  FIATO R A,  DAVIS S M,  CLAVENNA L R;  US5503944-A   INT FUEL CELLS CORP (ITFU)   MARGIOTT P R,  MEYER A P,  SCHEFFLER G W;  US5510056-A   SHELL INT RES MIJ BV (SHEL)   JACOBS L L G,  LEDNOR P W,  LIMAHELU A G G,  SCHOONEBEEK R J,  VONKEMAN K A;  US5510201-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5516344-A   INT FUEL CELLS CORP (ITFU)   CORRIGAN T J;  US5518827-A   MITSUBISHI ELECTRIC CORP (MITQ)   MATSUMURA M,  HIRAI C;  US5520891-A   LEE J M (LEEJ-Individual)   LEE J M;  US5527631-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SINGH P,  SHOCKLING L A,  GEORGE R A,  BASEL R A;  US5527632-A   ROLLS ROYCE & ASSOC LTD (RORO)   GARDNER F J;  US5529484-A   MOARD D M (MOAR-Individual);  GREINER L (GREI-Individual)   GREINER L,  MOARD D M;  US5538706-A   BOC GROUP INC (BRTO)   MACLEAN D L,  KAPOOR A,  KRISHNAMURTHY R;  US5543532-A   DU PONT DE NEMOURS & CO E I (DUPO)   KOURTAKIS K,  SONNICHSEN G C;  US5546701-A   HYDROGEN BURNER TECHNOLOGY INC (HYDR-Non-standard)   BHATT B,  MOARD D M,  GREINER L;  US5547776-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  CHOW C Y,  POW E G,  WOZNICZKA B M,  VOSS H H,  HORNBURG G;  US5554347-A   INST FRANCAIS DU PETROLE (INSF);  GAZ DE FRANCE (GAZD)   BUSSON C,  DELHOMME H,  GOLLION L,  CASSAGNE J P;  US5554351-A   HALDOR TOPSOE AS (TOPS)   IVARSEN PRIMDAHL I;  US5560891-A   ;  US5565009-A   STANDARD OIL CO OHIO (STAH)   RUHL R C,  KENYON M R,  HARDMAN S,  MCFARLANE R A;  US5567397-A   ;  US5567398-A   STANDARD OIL CO OHIO (STAH)   RUHL R C,  FELICE R A;  US5573866-A   INT FUEL CELLS CORP (ITFU)   MARICLE D L,  VAN DINE L L;  US5578093-A   ;  US5588974-A   ;  US5593640-A   BALL CORP (BALP)   LYNCH F,  LONG E,  SCHMIDT J;  US5604047-A   ;  US5609834-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   HAMADA K,  MIZUSAWA M,  KOGA M;  US5612012-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  ISOMURA M;  US5618322-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5628931-A   SHELL CANADA LTD (SHEL)   LEDNOR P W,  SENDEN M M G,  VAN DER ZWET G P;  US5637415-A   GENERAL MOTORS CORP (GENK)   MELTSER M A,  HOCH M M;  US5639401-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   JACOBS L L G,  LEDNOR P W,  VAN LOON P J M,  OOSTERVELD M,  VONKEMAN K A,  WENTINCK H M,  VAN DER ZWET G P,  LANGE J P;  US5639431-A   TOKYO GAS CO LTD (TOLG);  MITSUBISHI JUKOGYO KK (MITO)   SHIRASAKI Y,  GONDAIRA M,  OHTA Y,  UCHIDA H,  KURODA K,  UCHIDA T,  FUJIMOTO Y,  MAKIHARA H,  OHTA S,  KOBAYASHI K;  US5643692-A   OHMI T (OHMI-Individual)   OHMI T;  US5645950-A   DAIMLER-BENZ AG (DAIM)   FLECK W;  US5646852-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5648051-A   CHEVRON USA INC (CALI)   BACHTEL R W,  DARSOW B A,  EARLS D E,  JOHNSON D R,  KLETT R J,  KRAMER D C,  REYNOLDS B E,  SCHEUERMAN G L,  TRIMBLE H J,  BROSSARD D N;  US5648182-A   EQUOS RES KK (EQUS);  AISIN AW CO LTD (AISW)   HARA T,  KATO K,  TAKADA C;  US5651800-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5669960-A   PRAXAIR TECHNOLOGY INC (PRAX)   COUCHE M R;  US5676911-A   CANADA MIN NAT DEFENCE (MIND)   BAUMERT R M,  EPP D G,  PETERS E J;  US5700595-A   INT FUEL CELLS CORP (ITFU)   REISER C;  US5705138-A   ;  US5707917-A   ENGELHARD DE MEERN BV (ENGH)   GEUS J W,  OVERBEEK R A;  US5712052-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S;  US5716587-A   KHANMAMEDOV T K (KHAN-Individual)   KHANMAMEDOV T K;  US5718881-A   INT FUEL CELLS INC (ITFU)   BONK S P,  CORRIGAN T J,  SEDERQUIST R A,  SZYDLOWSKI D F;  US5728183-A   HYDROGEN BURNER TECHNOLOGY INC (HYDR-Non-standard)   HERZIG A M;  US5730763-A   KORTEC AG (KORT-Non-standard)   MANOLESCU M T,  VAN,  VANDENHOEC J P;  US5733347-A   INT FUEL CELLS CORP (ITFU)   LESIEUR R R;  US5733675-A   WESTINGHOUSE ELECTRIC CORP (WESE)   HAGER C A,  DEDERER J T;  US5733941-A   MARATHON OIL CO (MAOC)   WAYCUILIS J J;  US5741440-A   EASTMAN CHEM CO (EACH)   COOPER J L,  INGRAM E M;  US5741474-A   NGK INSULATORS LTD (NIGA)   ISOMURA M,  SOMA T,  TAKAHASHI T;  US5746985-A   NGK INSULATORS LTD (NIGA)   TAKAHASHI T;  US5750076-A   BALLARD POWER SYSTEMS INC (BLRD)   MCNEILLY L,  WATKINS D S,  BUSWELL R F,  COHEN R;  US5763114-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  ELANGOVAN S,  HARTVIGSEN J J;  US5763765-A   BALLARD POWER SYSTEMS INC (BLRD)   LAMONT G J,  WILKINSON D P;  US5769909-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  SZYDLOWSKI D F,  CORRIGAN T J,  BONK S P,  LESIEUR R R;  US5771476-A   BALLARD POWER SYSTEMS INC (BLRD)   MUFFORD W E,  STRASKY D G;  US5792572-A   INT FUEL CELLS CORP (ITFU);  CLC SRL (CLCC-Non-standard)   FOLEY P F,  LUCZAK F J,  PRESTON J L,  TEELING C R,  BREAULT R D,  FREDLEY R R,  SCHEFFLER G W;  US5800792-A   TEISAN KK (TEIS)   IBARAKI Y,  INA H,  KAWANAKA H;  US5823761-A   INST FRANCAIS DU PETROLE (INSF)   EUZEN P,  LE GAL J,  MARTIN G;  US5840270-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5840437-A   SULZER INNOTEC AG (SULZ)   DIETHELM R;  US5843195-A   TOYOTA JIDOSHA KK (TOYT)   AOYAMA S;  US5858314-A   ZTEK CORP (ZTEK-Non-standard)   HSU M S,  HOAG E D;  US5861137-A   EDLUND D J (EDLU-Individual)   EDLUND D J;  US5869011-A   LEE J M (LEEJ-Individual)   LEE J M;  US5874051-A   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US5876469-A   CHIYODA CORP (CHIY)   MORIYA N,  KAWAI T,  YAGI H,  SHIMIZU R,  MORITA Y;  US5897970-A   NGK INSULATORS LTD (NIGA)   ISOMURA M,  SOMA T,  TAKAHASHI T;  US5904907-A   ;  US5914091-A   ATMI ECOSYS CORP (ATMI-Non-standard)   HOLST M R,  OLANDER W K,  TOM G M;  US5916529-A   CHEVRON USA INC (CALI)   SCHEUERMAN G L;  US5925322-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5931658-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  SZYDLOWSKI D F,  CORRIGAN T J,  BONK S P;  US5938800-A   MCDERMOTT TECHNOLOGY INC (MCDE-Non-standard)   VERRILL C L,  MCILROY R A,  PRIVETTE R M,  CHANEY L J,  KNEIDEL K E;  US5939031-A   EXXON RES & ENG CO (ESSO)   ELLIS E S,  FREDERICK J W,  GUPTA R,  DANKWORTH D C,  TSANGARIS D M;  US5942197-A   EXXON RES & ENG CO (ESSO)   GUPTA R,  FREDERICK J W,  ELLIS E S,  DANKWORTH D C,  TSANGARIS D M;  US5942203-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P,  FRALEY L D;  US6033456-A   TEXACO INC (TEXC)   JAHNKE F C;  US6051192-A   INT FUEL CELLS CORP (ITFU)   MASTON V A,  RAYMOND M S,  GRUBB P A,  MALINOWSKI T S,  VANDINE L L,  SEDERQUIST R A;  US6077620-A   GENERAL MOTORS CORP (GENK)   PETTIT W H;  US6238815-B1   GENERAL MOTORS CORP (GENK)   SKALA G W,  HART-PREDMORE D J,  PETTIT W H,  BORUP R L;  US6375924-B1   UOP LLC (UNVO)   TOWLER G P,  VANDEN BUSSCHE K M;  US35002-E   YAMAHA HATSUDOKI KK (YMHA)   MATSUBARA H,  MIZUNO Y,  HANASHIMA T;  US36148-E   SIEMENS AG (SIEI)   STRASSER K;  WO1997044123-A1   ;  WO1998008771-A2   ;  AU768496-B -- WO1998008771-A2   ;  EP1181241-B1 -- EP921585-A2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  SCHUESSLER M,  STROBEL B,  WIELAND S,  ZUR MEGEDE D;  WO1998008771-A2   ;  US6986797-B1 -- EP112613-A   ENGELHARD MINERALS CORP (ENGH);  EP312757-A   ;  EP361648-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J,  TWIGG M V;  EP600621-A1   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  GB1060166-A   ;  GB1408560-A   SHELL INT RES MIJ NV (SHEL);  VAN LUOKEREN C N (VLOO-Individual);  GB2084894-A   ;  GB2179366-A   BRITISH PETROLEUM CO PLC (BRPE)   FIDDLER A S,  MAUNDER A D;  GB2268322-A   ROLLS ROYCE & ASSOC LTD (RORO)   GARDNER F J;  JP06211501-A   ;  US1366176-A   ;  US1375932-A   ;  US1797426-A   ;  US2051363-A   ;  US2220849-A   ;  US2759805-A   ;  US2795559-A   ;  US3014787-A   ;  US3159450-A   ;  US3180813-A   ;  US3278452-A   ;  US3288646-A   ;  US3334971-A   ;  US3367882-A   ;  US3375140-A   ;  US3395004-A   ;  US3397028-A   ;  US3446672-A   ;  US3446674-A   UNITED TECHNOLOGIES CORP (UNAC);  US3451949-A   ;  US3499797-A   TEXAS INSTR INC (TEXI);  US3516807-A   TEXAS INSTR INC (TEXI);  US3524720-A   ;  US3531263-A   UTD AIRCRAFT CORP (UNAC);  US3541729-A   CANADIAN GENERAL ELECTRIC CO (GENE);  US3607419-A   UNITED AIRCRAFT CORP (UNAC);  US3615850-A   GENERAL ELECTRIC CO (GENE);  US3619144-A   TEXAS INSTR INC (TEXI);  US3645701-A   LUMMUS CO (LUMM);  US3649360-A   UNITED AIRCRAFT CORP (UNAC);  US3666423-A   TEXACO INC (TEXC);  US3666682-A   TEXACO INC (TEXC);  US3669751-A   RICHMAN PD (RIC-Individual);  US3718506-A   ;  US3729898-A   CHEM CONSTR CORP (CCCO);  US3787038-A   N-I INST PRIRODNITSCH GAS (NAT-Non-standard);  US3796547-A   TEXACO INC (TEXC);  US3909299-A   UNITED TECHNOLOGIES CORP (UNAC)   CORRIGAN T J;  US3920416-A   NAT AERO & SPACE ADMIN (USAS);  US ENERGY R & D ADMIN (USAT);  US3932147-A   JAPAN GASOLINE CO LTD (JAGA);  US3941869-A   FUCHS W (FUCH-Individual)   FUCHS W;  US3955941-A   CALIF INST TECH (CALT-Non-standard)   HOUSEMAN J,  RUPE J H,  KUSHIDA R O;  US3961018-A   UTD AIR SPECIALISTS (UNAI-Non-standard)   WILLIAMSON W H;  US3971847-A   NAT AERO & SPACE ADMIN (USAS);  US ENERGY R & D ADMIN (USAT);  US3982910-A   NAT AERO & SPACE ADMIN (USAS);  US4006099-A   TEXACO INC (TEXC)   MARION C P,  CROUCH W B;  US4006100-A   TEXACO INC (TEXC)   CROUCH W B;  US4007017-A   ;  US4007018-A   ;  US4007019-A   TEXACO INC (TEXC)   SLATER W L,  RICHTER G N,  CROUCH W B,  ESTABROOK L E;  US4008050-A   BETZ E C (BETZ-Individual)   BETZ E C;  US4010797-A   ;  US4025612-A   TEXACO INC (TEXC)   BARBER E M;  US4045960-A   METALLGESELLSCHAFT AG (METG);  US4056602-A   THAGARD TECHN CO (THAG-Non-standard)   MATOVICH E;  US4059076-A   NISSAN MOTOR CO LTD (NSMO)   KOSAKA K,  UENO Z;  US4060397-A   SHELL INT RES MIJ BV (SHEL);  US4060498-A   HITACHI LTD (HITA);  US4066543-A   ;  US4067958-A   ;  US4071330-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4072601-A   ;  US4074981-A   TEXACO INC (TEXC)   SLATER W L;  US4083799-A   TEXACO INC (TEXC)   ESTES J G,  KERR E R,  DORAWALA T G;  US4087259-A   TOYOTA CHUO KENKYUSHO KK (TOYW);  US4094813-A   SHELL INT RES MIJ BV (SHEL);  US4098587-A   UNITED TECHNOLOGIES CORP (UNAC);  US4098588-A   UNITED TECHNOLOGIES CORP (UNAC)   BUSWELL R F,  SEDERQUIST R A,  SNOPKOWSKI D J;  US4098589-A   UNITED TECHNOLOGIES CORP (UNAC);  US4099383-A   TEXACO INC (TEXC)   PAULL P L,  MCGANN R;  US4101376-A   METALLGESELLSCHAFT AG (METG);  US4113441-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  US4113445-A   BASF AG (BADI);  TEXACO DEV CORP (TEXC)   GETTERT H,  JECK A,  WERNER D;  US4121912-A   TEXACO INC (TEXC)   BARBER E M,  MUENGER J R,  ALEXANDER D L;  US4125090-A   TOYOTA JIDOSHA KK (TOYT);  US4140493-A   PHILLIPS PETROLEUM CO (PHIP)   JOHNSON M M,  NOWACK G P;  US4145405-A   CONTINENTAL OIL CO (CONO)   GORIN E;  US4153671-A   NALCO CHEM CO (NALC)   CLEMENTS P,  BASILA M R,  BARRY J J;  US4155987-A   ;  US4162290-A   PULLMAN INC (PULL);  US4178758-A   TEXACO DEV CORP (TEXC);  US4181503-A   UNITED TECHNOLOGIES CORP (UNAC)   LESIEUR R R,  SETZER H J,  HAWKINS J R;  US4182795-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S,  DHARIA D J;  US4183369-A   THOMAS R E (THOM-Individual)   THOMAS R E;  US4184322-A   TEXACO DEV CORP (TEXC);  US4191540-A   CHEVRON RES CO (CALI)   MITCHELL D S,  SAGEMAN D R;  US4199545-A   ;  US4203950-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4205044-A   TECNIMONT SPA (TECN-Non-standard);  US4216198-A   BILLINGS ENERGY CORP (BILL-Non-standard);  SIMONS H M (SIMO-Individual)   SIMONS H M;  US4224298-A   ROBINSON L F (ROBI-Individual)   ROBINSON L F;  US4229418-A   ;  US4233179-A   CATALYSTS & CHEM INC (CACH);  UNITED CATALYSTS INC (UNCA-Non-standard);  US4233180-A   CATALYSTS & CHEM INC (CACH);  UNITED CATALYSTS (UNCA-Non-standard);  US4233276-A   STANDARD OIL CO INDIANA (STAD)   D'SOUZAG J,  RADFORD H D;  US4236899-A   SIEMENS AG (SIEI);  US4236941-A   ;  US4240805-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4242105-A   ;  US4246235-A   ;  US4259294-A   SHELL INT RES MIJ BV (SHEL);  US4259312-A   ;  US4259414-A   RCA CORP (RADC)   WILLIAMS R;  US4261964-A   ;  US4277444-A   INST FRANCAIS DU PETROLE (INSF);  US4293315-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4328008-A   TEXACO DEV CORP (TEXC)   MUENGER J R,  CHILD E,  BRENT A;  US4328856-A   CORNING GLASS WORKS (CORG)   CUNNINGHAM G M;  US4337170-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4338292-A   TEXACO INC (TEXC)   DURANLEAU R C,  GATES W C;  US4341737-A   LUMMUS CO (LUMM)   ALBANO J V,  FRIEDMAN G;  US4343624-A   CATERPILLAR TRACTOR CO (CATE);  BELKE W H (BELK-Individual)   BELKE W H,  GRIM G B;  US4355003-A   ;  US4365006-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S;  US4371379-A   TEXACO DEV CORP (TEXC)   ARMION C P,  CHILD E T,  RICHTER N,  BRENT A,  REYNOLDS B,  CROUCH W B;  US4372920-A   AMMONIA CASALE SA (CASA)   ZARDI U;  US4391617-A   ;  US4391794-A   SILBERRING L (SILB-Individual)   SILBERRING L;  US4402711-A   ;  US4405593-A   METALLGESELLSCHAFT AG (METG)   SCHIAUER J,  FISCHER H,  KRIEBEL M;  US4420462-A   CLYDE R A (CLYD-Individual)   CLYDE R A;  US4430096-A   ;  US4436711-A   SHELL OIL CO (SHEL)   OLSON D C;  US4442020-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4454207-A   US DEPT ENERGY (USAT)   FRAIOLI A V,  YOUNG J E;  US4462928-A   ;  US4464444-A   HITACHI LTD (HITA)   MIKAWA H;  US4491456-A   TEXACO DEV CORP (TEXC)   SCHLINGER W G;  US4504447-A   WESTINGHOUSE ELECTRIC CORP (WESE);  US DEPT ENERGY (USAT)   SPURRIER F R,  DEZUBAY E A,  MURRAY A P,  VIDT E J;  US4505232-A   HITACHI LTD (HITA);  BABCOCK-HITACHI KK (HITG)   KIRIHARA S,  DOI H,  ASANO C,  SUKEKAWA M,  SAKAGUCHI Y;  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  US4532192-A   ENERGY RES CORP (ENER-Non-standard);  MITSUBISHI DENKI KK (MITQ)   BAKER B S,  GHEZEAYAG H G;  US4553981-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4569890-A   ;  US4581157-A   IMPERIAL CHEM IND PLC (ICIL)   TWIGG M V;  US4590044-A   SHELL INT RES MIJ BV (SHEL)   MOS A L,  BUKKEMS F H J;  US4618451-A   IMPERIAL CHEM IND PLC (ICIL)   GENT C W;  US4626521-A   NAT DISTILLERS & CHEM CORP (NADI)   MURIB J H;  US4636371-A   ;  US4642042-A   ;  US4642272-A   INTER FUEL CELLS CO (ITFU-Non-standard)   SEDERQUIST R A;  US4650651-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4657828-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAJIMA H;  US4659634-A   STRUTHERS R C (STRU-Individual)   STRUTHERS R C;  US4666680-A   FLUOR CORP (FLUO)   LEWIS J L;  US4670357-A   INT FUEL CELLS CORP (ITFU)   TAYLOR W A;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US4678600-A   HALDOR TOPSOE AS (TOPS);  STAHL H O (STAH-Individual);  EPRI ELEC POWER RES (EPRI-Non-standard)   STAHL H O,  ROSTRUPNIE J R;  US4678723-A   INT FUEL CELLS CORP (ITFU)   WERTHEIM R J;  US4681701-A   SHELL INT RES MIJ BV (SHEL)   SIE S T;  US4686157-A   SANYO ELECTRIC CO (SAOL);  MIYAKE Y (MIYA-Individual)   MIYAKE Y,  NISHIOKA M,  ITO Y;  US4690690-A   IMPERIAL CHEM IND PLC (ICIL)   SMITH A S,  DOY R J,  LIMBACH A P;  US4692306-A   KINETICS TEC INT (KINE-Non-standard)   MINET R G,  WARREN D;  US4693882-A   INT FUEL CELLS CORP (ITFU)   SETZER H J,  KARAVOLIS S,  BETT J A S;  US4696871-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A;  US4716023-A   ENERGY RES CORP (ENER-Non-standard)   CHRISTNER L G,  KOEHLER S A;  US4722873-A   MITSUBISHI DENKI KK (MITQ)   MATSUMURA M;  US4729931-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GRIMBLE R E;  US4731989-A   TOSHIBA KK (TOKE)   FURUYA T,  YAMANAKA S,  HAYATA T,  KOEZUKA J;  US4737161-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  SULJAK G T;  US4738903-A   INT FUEL CELLS CORP (ITFU)   GAROW J,  OTTER L H;  US4740357-A   INT FUEL CELLS CORP (ITFU)   BUSWELL R F,  EMANUELSON R C;  US4741978-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAKABAYASHI Y;  US4743517-A   INT FUEL CELLS CORP (ITFU)   COHEN R,  BUSWELL R F;  US4746329-A   ENERGY RES CORP (ENER-Non-standard)   CHRISTNER L G,  KOEHLER S A,  STEINFELD G;  US4751151-A   INT FUEL CELLS CORP (ITFU)   HEALY H C,  KOLODNEY M,  LEVY A H,  TROCCIOLA J C;  US4759997-A   HITACHI LTD (HITA);  HITACHI TECHNO ENGINEER (HIST)   OOYACHI H,  AMANO Y,  HANZAWA A;  US4762532-A   DOW CHEM CO (DOWC)   LIPP C W;  US4765132-A   ;  US4766044-A   UNITED TECHNOLOGIES CORP (UNAC);  INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A;  US4778485-A   TEXACO INC (TEXC)   SUGGITT R M,  NAJJAR M S,  CORBEELS R J;  US4781241-A   INT FUEL CELLS CORP (ITFU)   MISAGE R,  SCHEFFLER G W,  SETZER H J,  MARGIOTT P R,  PARENTI E K;  US4781731-A   TEXACO INC (TEXC)   SCHLINGER W G;  US4782669-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  VANDINE L L;  US4789384-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J,  HASENACK H J;  US4789540-A   JOHNSON MATTHEY PLC (JOHO)   JENKINS J W;  US4791033-A   ENERGY RES CORP (ENER-Non-standard);  MITSUBISHI DENKI KK (MITQ)   PATEL P;  US4792436-A   KINETICS TECHN INT (KINE-Non-standard)   TSAI F W;  US4792502-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  VANDINE L L;  US4800138-A   INT FUEL CELLS COR (ITFU-Non-standard)   ROMANOWSKI W E,  SULJAK G T;  US4801356-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   GRASSO A P;  US4804580-A   INT FUEL CELLS CORP (ITFU)   SINGELYN J D;  US4804591-A   INT FUEL CELLS CORP (ITFU)   GRASSO A,  VOGEL W,  TAYLOR W;  US4810485-A   INST GAS TECHNOLOGY (IGTE)   MARIANOWSK L G,  FLEMING D K;  US4816040-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   BONVILLE L J,  SEDERQUIST R A,  GRASSO A P;  US4816353-A   INT FUEL CELLS CORP (ITFU);  US4822521-A   UOP INC (UNVO)   FUDERER A;  US4824738-A   ;  US4824740-A   INT FUEL CELLS CORP (ITFU)   ABRAMS M L,  DAQUILA D L,  SCHEFFLER G W;  US4826742-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US4828940-A   INT FUEL CELLS CORP (ITFU)   COHEN R,  BUSWELL R F;  US4830091-A   BASF AG (BADI)   DIERKE R,  SCHLICHTHA G,  SCHUCHART P,  SCHWEITZER A;  US4830834-A   HALDOR TOPSOE AS (TOPS);  STAHL H O (STAH-Individual);  EPRI ELEC POWER RES (EPRI-Non-standard)   STAHL H O,  ROSTRUPNIE J R;  US4835072-A   INT FUEL CELLS CORP (ITFU)   GRASSO A P,  VOGEL W M;  US4836831-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J;  US4838020-A   MITSUBISHI DENKI KK (MITQ)   FUJITSUKA M;  US4838897-A   HITACHI LTD (HITA)   AMANO Y,  YOKOYAMA E,  OOYACHI H;  US4839247-A   INT FUEL CELLS CORP (ITFU)   LEVY A H,  VANDINE L L,  TROCCIOLA J C;  US4842844-A   BOEING CO (BOEI)   HARRIS W G,  SILVA D J;  US4844837-A   ENGELHARD MINERALS CORP (ENGH);  US4847051-A   INT FUEL CELLS CORP (ITFU)   PARENTI E K;  US4849187-A   TOYO ENG CORP (TOXS)   UOZU H,  NAITOH A,  NUMAGUCHI T;  US4855192-A   INT FUEL CELLS CORP (ITFU);  INTE FUEL CELLS COR (ITFU-Non-standard)   GRASSO A P;  US4861347-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  SULJAK G T;  US4865624-A   NIPPON SANSO KK (NIIO)   OKADA H;  US4865926-A   INT FUEL CELLS CORP (ITFU)   LEVY A H,  WERTHEIM R J;  US4869894-A   AIR PROD & CHEM INC (AIRP)   WANG S I,  KOCH W R;  US4876163-A   WESTINGHOUSE ELECTRIC CORP (WESE)   REICHNER P;  US4877592-A   ;  US4879189-A   INT FUEL CELLS CORP (ITFU)   SNOPKOWSKI D J;  US4888031-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J;  US4888130-A   BANQUY D L (BANQ-Individual);  FOSTER WHEELER CORP (FOSX)   BANQUY D L;  US4892717-A   ;  US4897089-A   ;  US4897253-A   JOHNSON MATTHEY PLC (JOHO)   JENKINS J W;  US4902586-A   INT FUEL CELLS CORP (ITFU)   WERTHEIM R J;  US4904455-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US4909808-A   NAT AERO & SPACE ADMIN (USAS)   VOECKS G E;  US4909809-A   TOYO ENG CORP (TOXS)   OSAKI K,  UOZU H,  YANARU H;  US4910099-A   US DEPT ENERGY (USAT)   GOTTESFELD S;  US4919844-A   AIR PROD & CHEM INC (AIRP)   SHOOUI W;  US4921680-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   BONK S P,  MORGANTHAL G F,  MIURA Y;  US4923767-A   INT FUEL CELLS CORP (ITFU)   GRASSO A P,  VOGEL W M;  US4923768-A   FUJI ELECTRIC MFG CO LTD (FJIE)   KANEKO H,  NISHIGAKI H;  US4925456-A   ;  US4935037-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SEIKI N,  HANZAWA A;  US4943493-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G;  US4946750-A   KTI GROUP BV (KTIK-Non-standard);  KINETICS TECHN INT (KINE-Non-standard);  US4952380-A   ;  US4971601-A   TEXACO INC (TEXC)   NAJJAR M S,  GATES W C;  US4973528-A   INT FUEL CELLS CORP (ITFU)   SANDERSON R A;  US4973529-A   INT FUEL CELLS SOUT (LTFU-Non-standard)   GRASSO A P,  VOGEL W M,  TAYLOR A,  DUFNER B F;  US4976747-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  LESIEUR R R;  US4985231-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US4988580-A   TOYO ENG CORP (TOXS)   OHSAKI K,  SHIMA K,  OSAKI K,  OKADA M;  US4993368-A   ARMADA INVEST GRP (ARMA-Non-standard)   JONES H P,  WOODWARD R M;  US4994331-A   INT FUEL CELLS CORP (ITFU);  COHEN R (COHE-Individual)   COHEN R;  US4999029-A   BASF AG (BADI);  LUETH G (LUET-Individual)   LUETH G,  BECKER R,  HORN R K,  KEMPE U,  VODRAZKA W;  US4999133-A   BANQUY D L (BANQ-Individual);  FOSTER WHEELER CORP (FOSX)   BANQUY D L;  US5000926-A   MITSUBISHI GAS CHEM CO INC (MITN);  MITSUBISHI HEAVY INDS (MITO)   MURAYAMA K,  KUWA M;  US5004592-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  TWIGG M V;  US5006131-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US5011625-A   KELLOGG CO M W (PULL)   LEBLANC J R;  US5011670-A   AIR PROD & CHEM INC (AIRP)   DAVIS R A,  NICHOLAS D M,  SMITH D D,  WANG S I,  WRIGHT R A;  US5013617-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W;  US5019356-A   ING SILBERRING AG (SILB-Non-standard);  SILBERRING L (SILB-Individual)   SILBERRING L;  US5019463-A   YAMAHA HATSUDOKI KK (YMHA)   MATSUBARA H,  MIZUNO Y,  HANAJIMA T;  US5026536-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENTER (PETR-Non-standard);  ZH SEIKIYU SANGYO KASSEI (SEKI-Non-standard)   SHIOIRI T,  SATAKE S,  SEKIDO Y,  FUJISOU T,  OBUCHI A,  KATO H;  US5030440-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J,  TWIGG M V;  US5030661-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US5032365-A   MITSUBISHI DENKI KK (MITQ)   ITO N,  TSURU K,  AONO A;  US5034287-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US5035867-A   INST FRANCAIS DU PETROLE (INSF)   DANG V,  HUIN R,  EUZEN J P;  US5039510-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  TWIGG M V;  US5043232-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B,  TANRIKUT Y B;  US5045414-A   INT FUEL CELLS CORP (ITFU)   BUSHNELL C L,  DAVIS C L;  US5059494-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G,  LANDAU M B;  US5064732-A   INT FUEL CELLS CORP (ITFU)   MEYER A P;  US5064733-A   GAS RES INST (GASR-Non-standard)   KRIST K,  SAMMELLS A F;  US5071719-A   HALDOR TOPSOE AS (TOPS)   ROSTRUPNIE J R,  JORN E;  US5079105-A   ASEA BROWN BOVERI A (ALLM)   BOSSEL U;  US5080875-A   HWT GES HYDRID WASS (HWTH-Non-standard)   BERNAUER O;  US5084363-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US5087271-A   TEXACO INC (TEXC)   STELLACCIO R J,  DACH M M;  US5092121-A   ;  US5093178-A   ;  US5096470-A   BOC GROUP PLC (BRTO)   KRISHNAMUR R;  US5096674-A   FUJI ELECTRIC MFG CO LTD (FJIE)   SHINKAI H;  US5098690-A   UOP (UNVO)   KOVES W J;  US5106390-A   AMER POWER & WASTE (AMPO-Non-standard)   BEIERLE F P,  MAZZAWI M;  US5106590-A   DAVY MCKEE LONDON LTD (POGC)   HOPPER A,  HILL G,  DUNSTER M;  US5110559-A   HITACHI LTD (HITA)   KONDO Y,  AMANO Y,  KIMURA S,  HORIUCHI S;  US5112578-A   MITSUBISHI GAS CHEM CO INC (MITN)   MURAYAMA K,  YAMAGUCHI M,  NAKAMURA T;  US5122299-A   KELLOGG CO M W (PULL)   LEBLANC J R;  US5132174-A   INT FUEL CELLS CORP (ITFU)   ROMANOWSKI W E,  KOCUM F A;  US5141823-A   VICKERS SHIPBUILDING & ENG (VICS)   WRIGHT B J,  SEYMOUR C M,  ADAMS V W,  CATCHPOLE J P;  US5143800-A   WESTINGHOUSE ELECTRIC CORP (WESE)   REICHNER P,  GEORGE R A,  HOOVER D Q,  SHOCKLING L A;  US5149600-A   PETRO ENERGY CENT (PETR-Non-standard);  SEKIYU SANGYO KASSEI (SEKI-Non-standard);  SHOWA SHELL SEIKIYU KK (SHEL)   YAMASE O,  YOSHIZAWA S,  MIURA T;  US5152975-A   TEXACO DEV CORP (TEXC)   FONG W C F,  CHAN H C,  SUGGITT R M,  QUINTANA M E;  US5156821-A   ;  US5156926-A   MTU FRIEDRICHSHAFEN AG (MOTU)   LEMOINE J;  US5164163-A   KOBE SEIKO SHO KK (KOBM)   AOKI M,  IMOTO Y,  SUGIMURA H,  OTANI K;  US5181937-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US5193635-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANAJIMA T,  MATSUBARA H;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5202195-A   INT FUEL CELLS CORP (ITFU)   STEDMAN J K,  TROCCIOLA J C;  US5207185-A   GREINER L (GREI-Individual)   GREINER L,  MOARD D M;  US5213912-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R,  SEDERQUIST R A,  OLESEN O L;  US5221586-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI);  TOKYO GAS CO LTD (TOLG);  OSAKA GAS CO LTD (OSAG);  TOHO GAS KK (TOHG)   MORIMOTO H,  HATO,  HATORI S,  KOBAYASHI K,  UEMATSU H,  HIKITA T,  SHINOZAKI K,  NAKAGAWA S;  US5226928-A   TOKYO ELECTRIC POWER CO (TOEP);  KOBE SEIKO SHO KK (KOBM)   MAKABE T,  SATO H,  HAGIWARA A,  AOKI M,  SUGIMURA H,  KAWABATA T;  US5229102-A   MEDALERT INC (MEDA-Non-standard)   MINET R G,  TSOTSIS T T;  US5229222-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5235846-A   INT FUEL CELLS CORP (ITFU)   FANCIULLO S;  US5242673-A   MASSACHUSETTS INST TECHNOLOGY (MASI)   FLYTZANI-STEPHANOPOULOS M,  HU Z;  US5245110-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P,  FRALEY L D;  US5248566-A   US DEPT ENERGY (USAT)   KUMAR R,  AHMED S,  KRUMPELT M,  MYLES K M;  US5248567-A   TOSHIBA KK (TOKE)   TAKASHI A,  TETSUYA F,  MOTOHIRO T,  MASAHIRO A,  YUJI N,  SATOSHI S;  US5250270-A   KELLOGG CO M W (PULL)   NOE S A;  US5260143-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5260640-A   US DEPT ENERGY (USAT)   CARABETTA R A,  STAATS G E,  CUTTING J C;  US5275632-A   INT FUEL CELLS CORP (ITFU)   CORRIGAN T J;  US5290641-A   FUJI ELECTRIC MFG CO LTD (FJIE)   HARASHIMA K;  US5299536-A   MOARD D (MOAR-Individual);  GREINER L (GREI-Individual)   GREINER L,  MOARD D;  US5300275-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US5302470-A   OSAKA GAS CO LTD (OSAG);  US5308456-A   INT FUEL CELLS CORP (ITFU)   OLESEN O L,  KUNZ H R,  SEDERQUIST R A;  US5326550-A   UNIV BRITISH COLUMBIA (UYBR)   ADRIS A M,  GRACE J R,  LIM C J,  ELNASHAIE S S;  US5330857-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SEDERQUIST R A,  SMITH M J,  FARRIS P J;  US5335628-A   AQUA CHEM INC (AQAC)   DUNBAR W R;  US5340663-A   INT FUEL CELLS CORP (ITFU)   BUSWELL R F,  VARTANIAN G;  US5341313-A   ;  US5344721-A   TOSHIBA KK (TOKE)   MUNEUCHI A,  MURATA K;  US5346778-A   ENERGY PARTNERS INC (ENER-Non-standard)   EWAN J M,  MISIASZEK S M,  ALESSI D P;  US5346779-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   NAKAZAWA K;  US5360679-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US5362453-A   UHDE GMBH (UHDE)   MARSCH H;  US5366818-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  WATKINS D S,  PRATER K B;  US5366819-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  HARTVIGSEN J J;  US5366820-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5380600-A   HALDOR TOPSOE AS (TOPS)   HANSEN T,  JORN E;  US5382271-A   IND TECHNOLOGY RES INST (ITRI)   CHENG Y,  NG M L,  YOUNG M;  US5419978-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B;  US5421840-A   EXXON RES & ENG CO (ESSO)   TAYLOR J H,  SAY G R;  US5432021-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5436086-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   SEYMOUR C M,  DAMS R A D;  US5441546-A   MOARD D (MOAR-Individual);  GREINER L (GREI-Individual)   MOARD D,  GREINER L;  US5441821-A   BALLARD POWER SYSTEMS INC (BLRD)   GORBELL B N,  MERRITT R D;  US5447702-A   KELLOGG CO M W (PULL)   HENNINGSEN G B,  CAMPBELL W M;  US5451249-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  LESIEUR R R,  SANDELLI G J,  SPIEGEL R J,  TROCCIOLA J C,  HEALY H C;  US5458857-A   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  US5461864-A   CATALYTICA INC (CATA-Non-standard);  TANAKA KIKINZOKU KOGYO KK (TANI)   DALLA BETTA R A,  SHOJI T,  TANAKA S;  US5462358-A   AT & T IPM CORP (AMTT)   WERNER W V;  US5462719-A   ATLANTIC RICHFIELD CO (ATLF)   LITCHFIELD J F,  PEDERSEN M J,  SAMPATH V R;  US5464606-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  BUSWELL R F,  CLAUSI J V;  US5470360-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A;  US5470671-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  LAMONT G J,  BASURA V,  VOSS H H,  WILKINSON D P;  US5472986-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P;  US5484576-A   BAYER AG (FARB)   LANGER R,  BUYSCH H,  WAGNER P;  US5484577-A   BALLARD POWER SYSTEM INC (BLRD)   LEAVITT S L,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US5486313-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   DE JONG K P,  SCHOONEBEEK R J,  VONKEMAN K A,  LEDNOR P W,  OUD A E M,  VAN DER ZWET G P;  US5492682-A   SAES GETTERS SPA (SAES)   SUCCI M,  SOLCIA C,  DARCY L;  US5496531-A   EXXON RES & ENG CO (ESSO)   SAY G R,  FIATO R A,  DAVIS S M,  CLAVENNA L R;  US5503944-A   INT FUEL CELLS CORP (ITFU)   MARGIOTT P R,  MEYER A P,  SCHEFFLER G W;  US5510056-A   SHELL INT RES MIJ BV (SHEL)   JACOBS L L G,  LEDNOR P W,  LIMAHELU A G G,  SCHOONEBEEK R J,  VONKEMAN K A;  US5516344-A   INT FUEL CELLS CORP (ITFU)   CORRIGAN T J;  US5518827-A   MITSUBISHI ELECTRIC CORP (MITQ)   MATSUMURA M,  HIRAI C;  US5520891-A   LEE J M (LEEJ-Individual)   LEE J M;  US5527631-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SINGH P,  SHOCKLING L A,  GEORGE R A,  BASEL R A;  US5527632-A   ROLLS ROYCE & ASSOC LTD (RORO)   GARDNER F J;  US5529484-A   MOARD D M (MOAR-Individual);  GREINER L (GREI-Individual)   GREINER L,  MOARD D M;  US5546701-A   HYDROGEN BURNER TECHNOLOGY INC (HYDR-Non-standard)   BHATT B,  MOARD D M,  GREINER L;  US5547776-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  CHOW C Y,  POW E G,  WOZNICZKA B M,  VOSS H H,  HORNBURG G;  US5554347-A   INST FRANCAIS DU PETROLE (INSF);  GAZ DE FRANCE (GAZD)   BUSSON C,  DELHOMME H,  GOLLION L,  CASSAGNE J P;  US5554351-A   HALDOR TOPSOE AS (TOPS)   IVARSEN PRIMDAHL I;  US5565009-A   STANDARD OIL CO OHIO (STAH)   RUHL R C,  KENYON M R,  HARDMAN S,  MCFARLANE R A;  US5567397-A   ;  US5567398-A   STANDARD OIL CO OHIO (STAH)   RUHL R C,  FELICE R A;  US5573866-A   INT FUEL CELLS CORP (ITFU)   MARICLE D L,  VAN DINE L L;  US5578093-A   ;  US5588974-A   ;  US5609834-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   HAMADA K,  MIZUSAWA M,  KOGA M;  US5612012-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  ISOMURA M;  US5618322-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5628931-A   SHELL CANADA LTD (SHEL)   LEDNOR P W,  SENDEN M M G,  VAN DER ZWET G P;  US5639401-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   JACOBS L L G,  LEDNOR P W,  VAN LOON P J M,  OOSTERVELD M,  VONKEMAN K A,  WENTINCK H M,  VAN DER ZWET G P,  LANGE J P;  US5639431-A   TOKYO GAS CO LTD (TOLG);  MITSUBISHI JUKOGYO KK (MITO)   SHIRASAKI Y,  GONDAIRA M,  OHTA Y,  UCHIDA H,  KURODA K,  UCHIDA T,  FUJIMOTO Y,  MAKIHARA H,  OHTA S,  KOBAYASHI K;  US5643692-A   OHMI T (OHMI-Individual)   OHMI T;  US5645950-A   DAIMLER-BENZ AG (DAIM)   FLECK W;  US5648051-A   CHEVRON USA INC (CALI)   BACHTEL R W,  DARSOW B A,  EARLS D E,  JOHNSON D R,  KLETT R J,  KRAMER D C,  REYNOLDS B E,  SCHEUERMAN G L,  TRIMBLE H J,  BROSSARD D N;  US5648182-A   EQUOS RES KK (EQUS);  AISIN AW CO LTD (AISW)   HARA T,  KATO K,  TAKADA C;  US5651800-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5669960-A   PRAXAIR TECHNOLOGY INC (PRAX)   COUCHE M R;  US5700595-A   INT FUEL CELLS CORP (ITFU)   REISER C;  US5705138-A   ;  US5712052-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S;  US5716587-A   KHANMAMEDOV T K (KHAN-Individual)   KHANMAMEDOV T K;  US5718881-A   INT FUEL CELLS INC (ITFU)   BONK S P,  CORRIGAN T J,  SEDERQUIST R A,  SZYDLOWSKI D F;  US5728183-A   HYDROGEN BURNER TECHNOLOGY INC (HYDR-Non-standard)   HERZIG A M;  US5730763-A   KORTEC AG (KORT-Non-standard)   MANOLESCU M T,  VAN,  VANDENHOEC J P;  US5733347-A   INT FUEL CELLS CORP (ITFU)   LESIEUR R R;  US5733675-A   WESTINGHOUSE ELECTRIC CORP (WESE)   HAGER C A,  DEDERER J T;  US5733941-A   MARATHON OIL CO (MAOC)   WAYCUILIS J J;  US5741440-A   EASTMAN CHEM CO (EACH)   COOPER J L,  INGRAM E M;  US5741474-A   NGK INSULATORS LTD (NIGA)   ISOMURA M,  SOMA T,  TAKAHASHI T;  US5746985-A   NGK INSULATORS LTD (NIGA)   TAKAHASHI T;  US5763114-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  ELANGOVAN S,  HARTVIGSEN J J;  US5763765-A   BALLARD POWER SYSTEMS INC (BLRD)   LAMONT G J,  WILKINSON D P;  US5769909-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  SZYDLOWSKI D F,  CORRIGAN T J,  BONK S P,  LESIEUR R R;  US5792572-A   INT FUEL CELLS CORP (ITFU);  CLC SRL (CLCC-Non-standard)   FOLEY P F,  LUCZAK F J,  PRESTON J L,  TEELING C R,  BREAULT R D,  FREDLEY R R,  SCHEFFLER G W;  US5800792-A   TEISAN KK (TEIS)   IBARAKI Y,  INA H,  KAWANAKA H;  US5840270-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5840437-A   SULZER INNOTEC AG (SULZ)   DIETHELM R;  US5843195-A   TOYOTA JIDOSHA KK (TOYT)   AOYAMA S;  US5858314-A   ZTEK CORP (ZTEK-Non-standard)   HSU M S,  HOAG E D;  US5861137-A   EDLUND D J (EDLU-Individual)   EDLUND D J;  US5869011-A   LEE J M (LEEJ-Individual)   LEE J M;  US5876469-A   CHIYODA CORP (CHIY)   MORIYA N,  KAWAI T,  YAGI H,  SHIMIZU R,  MORITA Y;  US5897970-A   NGK INSULATORS LTD (NIGA)   ISOMURA M,  SOMA T,  TAKAHASHI T;  US5914091-A   ATMI ECOSYS CORP (ATMI-Non-standard)   HOLST M R,  OLANDER W K,  TOM G M;  US5916529-A   CHEVRON USA INC (CALI)   SCHEUERMAN G L;  US5925322-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5931658-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  SZYDLOWSKI D F,  CORRIGAN T J,  BONK S P;  US5938800-A   MCDERMOTT TECHNOLOGY INC (MCDE-Non-standard)   VERRILL C L,  MCILROY R A,  PRIVETTE R M,  CHANEY L J,  KNEIDEL K E;  US5939031-A   EXXON RES & ENG CO (ESSO)   ELLIS E S,  FREDERICK J W,  GUPTA R,  DANKWORTH D C,  TSANGARIS D M;  US5942197-A   EXXON RES & ENG CO (ESSO)   GUPTA R,  FREDERICK J W,  ELLIS E S,  DANKWORTH D C,  TSANGARIS D M;  US5942203-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P,  FRALEY L D;  US35002-E   YAMAHA HATSUDOKI KK (YMHA)   MATSUBARA H,  MIZUNO Y,  HANASHIMA T;  US36148-E   SIEMENS AG (SIEI)   STRASSER K;  WO1997044123-A1   ;  WO1998008771-A2   ;  US7066973-B1 -- EP112613-A   ENGELHARD MINERALS CORP (ENGH);  EP312757-A   ;  EP361648-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J,  TWIGG M V;  EP600621-A1   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  GB1060166-A   ;  GB1408560-A   SHELL INT RES MIJ NV (SHEL);  VAN LUOKEREN C N (VLOO-Individual);  GB2084894-A   ;  GB2179366-A   BRITISH PETROLEUM CO PLC (BRPE)   FIDDLER A S,  MAUNDER A D;  GB2268322-A   ROLLS ROYCE & ASSOC LTD (RORO)   GARDNER F J;  JP06211501-A   ;  US1366176-A   ;  US1375932-A   ;  US1797426-A   ;  US2051363-A   ;  US2220849-A   ;  US2759805-A   ;  US2795559-A   ;  US3014787-A   ;  US3159450-A   ;  US3180813-A   ;  US3216782-A   ;  US3216783-A   ;  US3278452-A   ;  US3288646-A   ;  US3334971-A   ;  US3367882-A   ;  US3375140-A   ;  US3395004-A   ;  US3397028-A   ;  US3446672-A   ;  US3446674-A   UNITED TECHNOLOGIES CORP (UNAC);  US3451949-A   ;  US3462308-A   ;  US3499797-A   TEXAS INSTR INC (TEXI);  US3516807-A   TEXAS INSTR INC (TEXI);  US3524720-A   ;  US3531263-A   UTD AIRCRAFT CORP (UNAC);  US3541729-A   CANADIAN GENERAL ELECTRIC CO (GENE);  US3607419-A   UNITED AIRCRAFT CORP (UNAC);  US3615850-A   GENERAL ELECTRIC CO (GENE);  US3619144-A   TEXAS INSTR INC (TEXI);  US3645701-A   LUMMUS CO (LUMM);  US3649360-A   UNITED AIRCRAFT CORP (UNAC);  US3657064-A   OWENS-ILLINOIS INC (OWEI);  US3666423-A   TEXACO INC (TEXC);  US3666682-A   TEXACO INC (TEXC);  US3669751-A   RICHMAN PD (RIC-Individual);  US3718506-A   ;  US3729898-A   CHEM CONSTR CORP (CCCO);  US3787038-A   N-I INST PRIRODNITSCH GAS (NAT-Non-standard);  US3796547-A   TEXACO INC (TEXC);  US3804578-A   D D ROBBINS (ROBB-Individual);  US3909299-A   UNITED TECHNOLOGIES CORP (UNAC)   CORRIGAN T J;  US3920416-A   NAT AERO & SPACE ADMIN (USAS);  US ENERGY R & D ADMIN (USAT);  US3932147-A   JAPAN GASOLINE CO LTD (JAGA);  US3941869-A   FUCHS W (FUCH-Individual)   FUCHS W;  US3955941-A   CALIF INST TECH (CALT-Non-standard)   HOUSEMAN J,  RUPE J H,  KUSHIDA R O;  US3961018-A   UTD AIR SPECIALISTS (UNAI-Non-standard)   WILLIAMSON W H;  US3971847-A   NAT AERO & SPACE ADMIN (USAS);  US ENERGY R & D ADMIN (USAT);  US3982910-A   NAT AERO & SPACE ADMIN (USAS);  US4006099-A   TEXACO INC (TEXC)   MARION C P,  CROUCH W B;  US4006100-A   TEXACO INC (TEXC)   CROUCH W B;  US4007017-A   ;  US4007018-A   ;  US4007019-A   TEXACO INC (TEXC)   SLATER W L,  RICHTER G N,  CROUCH W B,  ESTABROOK L E;  US4008050-A   BETZ E C (BETZ-Individual)   BETZ E C;  US4010797-A   ;  US4025612-A   TEXACO INC (TEXC)   BARBER E M;  US4042344-A   BROKEN HILL PTY CO LTD (BRHI);  US4045960-A   METALLGESELLSCHAFT AG (METG);  US4056602-A   THAGARD TECHN CO (THAG-Non-standard)   MATOVICH E;  US4059076-A   NISSAN MOTOR CO LTD (NSMO)   KOSAKA K,  UENO Z;  US4060397-A   SHELL INT RES MIJ BV (SHEL);  US4060498-A   HITACHI LTD (HITA);  US4066543-A   ;  US4067958-A   ;  US4071330-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4072601-A   ;  US4073698-A   ;  US4074981-A   TEXACO INC (TEXC)   SLATER W L;  US4083799-A   TEXACO INC (TEXC)   ESTES J G,  KERR E R,  DORAWALA T G;  US4087259-A   TOYOTA CHUO KENKYUSHO KK (TOYW);  US4088450-A   NISSAN MOTOR CO LTD (NSMO);  US4094813-A   SHELL INT RES MIJ BV (SHEL);  US4098587-A   UNITED TECHNOLOGIES CORP (UNAC);  US4098588-A   UNITED TECHNOLOGIES CORP (UNAC)   BUSWELL R F,  SEDERQUIST R A,  SNOPKOWSKI D J;  US4098589-A   UNITED TECHNOLOGIES CORP (UNAC);  US4099383-A   TEXACO INC (TEXC)   PAULL P L,  MCGANN R;  US4101376-A   METALLGESELLSCHAFT AG (METG);  US4113441-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  US4113445-A   BASF AG (BADI);  TEXACO DEV CORP (TEXC)   GETTERT H,  JECK A,  WERNER D;  US4121912-A   TEXACO INC (TEXC)   BARBER E M,  MUENGER J R,  ALEXANDER D L;  US4125090-A   TOYOTA JIDOSHA KK (TOYT);  US4140493-A   PHILLIPS PETROLEUM CO (PHIP)   JOHNSON M M,  NOWACK G P;  US4145405-A   CONTINENTAL OIL CO (CONO)   GORIN E;  US4153671-A   NALCO CHEM CO (NALC)   CLEMENTS P,  BASILA M R,  BARRY J J;  US4155987-A   ;  US4162290-A   PULLMAN INC (PULL);  US4178758-A   TEXACO DEV CORP (TEXC);  US4181503-A   UNITED TECHNOLOGIES CORP (UNAC)   LESIEUR R R,  SETZER H J,  HAWKINS J R;  US4182795-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S,  DHARIA D J;  US4183369-A   THOMAS R E (THOM-Individual)   THOMAS R E;  US4184322-A   TEXACO DEV CORP (TEXC);  US4191540-A   CHEVRON RES CO (CALI)   MITCHELL D S,  SAGEMAN D R;  US4199545-A   ;  US4203950-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4205044-A   TECNIMONT SPA (TECN-Non-standard);  US4216198-A   BILLINGS ENERGY CORP (BILL-Non-standard);  SIMONS H M (SIMO-Individual)   SIMONS H M;  US4224298-A   ROBINSON L F (ROBI-Individual)   ROBINSON L F;  US4229418-A   ;  US4233179-A   CATALYSTS & CHEM INC (CACH);  UNITED CATALYSTS INC (UNCA-Non-standard);  US4233180-A   CATALYSTS & CHEM INC (CACH);  UNITED CATALYSTS (UNCA-Non-standard);  US4233276-A   STANDARD OIL CO INDIANA (STAD)   D'SOUZAG J,  RADFORD H D;  US4236899-A   SIEMENS AG (SIEI);  US4236941-A   ;  US4240805-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4242105-A   ;  US4246235-A   ;  US4259294-A   SHELL INT RES MIJ BV (SHEL);  US4259312-A   ;  US4259414-A   RCA CORP (RADC)   WILLIAMS R;  US4261964-A   ;  US4277444-A   INST FRANCAIS DU PETROLE (INSF);  US4292274-A   UNITED TECHNOLOGIES CORP (UNAC)   FAITANI J J,  AUSTIN G W,  CHASE T J,  SULJAK G T,  MISAGE R J;  US4293315-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4328008-A   TEXACO DEV CORP (TEXC)   MUENGER J R,  CHILD E,  BRENT A;  US4328856-A   CORNING GLASS WORKS (CORG)   CUNNINGHAM G M;  US4337170-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4338292-A   TEXACO INC (TEXC)   DURANLEAU R C,  GATES W C;  US4341737-A   LUMMUS CO (LUMM)   ALBANO J V,  FRIEDMAN G;  US4343624-A   CATERPILLAR TRACTOR CO (CATE);  BELKE W H (BELK-Individual)   BELKE W H,  GRIM G B;  US4355003-A   ;  US4365006-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S;  US4371379-A   TEXACO DEV CORP (TEXC)   ARMION C P,  CHILD E T,  RICHTER N,  BRENT A,  REYNOLDS B,  CROUCH W B;  US4372920-A   AMMONIA CASALE SA (CASA)   ZARDI U;  US4381187-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4391617-A   ;  US4391794-A   SILBERRING L (SILB-Individual)   SILBERRING L;  US4392869-A   TEXACO DEV CORP (TEXC)   ARMION C P,  CHILD E T,  RICHTER N,  BRENT A,  REYNOLDS B,  CROUCH W B;  US4402711-A   ;  US4405562-A   AMMONIA CASALE SA (CASA)   ZARDI U,  COMANDINI E;  US4405593-A   METALLGESELLSCHAFT AG (METG)   SCHIAUER J,  FISCHER H,  KRIEBEL M;  US4420462-A   CLYDE R A (CLYD-Individual)   CLYDE R A;  US4430096-A   ;  US4436711-A   SHELL OIL CO (SHEL)   OLSON D C;  US4442020-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4454207-A   US DEPT ENERGY (USAT)   FRAIOLI A V,  YOUNG J E;  US4462928-A   ;  US4464444-A   HITACHI LTD (HITA)   MIKAWA H;  US4478793-A   UOP INC (UNVO)   VICKERS A G;  US4491456-A   TEXACO DEV CORP (TEXC)   SCHLINGER W G;  US4504447-A   WESTINGHOUSE ELECTRIC CORP (WESE);  US DEPT ENERGY (USAT)   SPURRIER F R,  DEZUBAY E A,  MURRAY A P,  VIDT E J;  US4505232-A   HITACHI LTD (HITA);  BABCOCK-HITACHI KK (HITG)   KIRIHARA S,  DOI H,  ASANO C,  SUKEKAWA M,  SAKAGUCHI Y;  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  US4530886-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4532192-A   ENERGY RES CORP (ENER-Non-standard);  MITSUBISHI DENKI KK (MITQ)   BAKER B S,  GHEZEAYAG H G;  US4553981-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4563267-A   BADGER CO INC (BADG)   GRAHAM J J,  KINZLER D D,  HUNT E P;  US4569890-A   ;  US4578370-A   UOP INC (UNVO)   GREENWOOD A R;  US4581157-A   IMPERIAL CHEM IND PLC (ICIL)   TWIGG M V;  US4590044-A   SHELL INT RES MIJ BV (SHEL)   MOS A L,  BUKKEMS F H J;  US4604275-A   ;  US4618451-A   IMPERIAL CHEM IND PLC (ICIL)   GENT C W;  US4626521-A   NAT DISTILLERS & CHEM CORP (NADI)   MURIB J H;  US4636371-A   ;  US4642042-A   ;  US4642272-A   INTER FUEL CELLS CO (ITFU-Non-standard)   SEDERQUIST R A;  US4650651-A   UNION CARBIDE CORP (UNIC)   FUDERER A;  US4657828-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAJIMA H;  US4659634-A   STRUTHERS R C (STRU-Individual)   STRUTHERS R C;  US4666680-A   FLUOR CORP (FLUO)   LEWIS J L;  US4670357-A   INT FUEL CELLS CORP (ITFU)   TAYLOR W A;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US4678600-A   HALDOR TOPSOE AS (TOPS);  STAHL H O (STAH-Individual);  EPRI ELEC POWER RES (EPRI-Non-standard)   STAHL H O,  ROSTRUPNIE J R;  US4678723-A   INT FUEL CELLS CORP (ITFU)   WERTHEIM R J;  US4681701-A   SHELL INT RES MIJ BV (SHEL)   SIE S T;  US4686157-A   SANYO ELECTRIC CO (SAOL);  MIYAKE Y (MIYA-Individual)   MIYAKE Y,  NISHIOKA M,  ITO Y;  US4690690-A   IMPERIAL CHEM IND PLC (ICIL)   SMITH A S,  DOY R J,  LIMBACH A P;  US4692306-A   KINETICS TEC INT (KINE-Non-standard)   MINET R G,  WARREN D;  US4693882-A   INT FUEL CELLS CORP (ITFU)   SETZER H J,  KARAVOLIS S,  BETT J A S;  US4696871-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A;  US4716023-A   ENERGY RES CORP (ENER-Non-standard)   CHRISTNER L G,  KOEHLER S A;  US4722873-A   MITSUBISHI DENKI KK (MITQ)   MATSUMURA M;  US4729931-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GRIMBLE R E;  US4737161-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  SULJAK G T;  US4738903-A   INT FUEL CELLS CORP (ITFU)   GAROW J,  OTTER L H;  US4740357-A   INT FUEL CELLS CORP (ITFU)   BUSWELL R F,  EMANUELSON R C;  US4741978-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAKABAYASHI Y;  US4743517-A   INT FUEL CELLS CORP (ITFU)   COHEN R,  BUSWELL R F;  US4746329-A   ENERGY RES CORP (ENER-Non-standard)   CHRISTNER L G,  KOEHLER S A,  STEINFELD G;  US4751151-A   INT FUEL CELLS CORP (ITFU)   HEALY H C,  KOLODNEY M,  LEVY A H,  TROCCIOLA J C;  US4759997-A   HITACHI LTD (HITA);  HITACHI TECHNO ENGINEER (HIST)   OOYACHI H,  AMANO Y,  HANZAWA A;  US4762532-A   DOW CHEM CO (DOWC)   LIPP C W;  US4765132-A   ;  US4766044-A   UNITED TECHNOLOGIES CORP (UNAC);  INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A;  US4778485-A   TEXACO INC (TEXC)   SUGGITT R M,  NAJJAR M S,  CORBEELS R J;  US4781241-A   INT FUEL CELLS CORP (ITFU)   MISAGE R,  SCHEFFLER G W,  SETZER H J,  MARGIOTT P R,  PARENTI E K;  US4781731-A   TEXACO INC (TEXC)   SCHLINGER W G;  US4782669-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  VANDINE L L;  US4789384-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J,  HASENACK H J;  US4789540-A   JOHNSON MATTHEY PLC (JOHO)   JENKINS J W;  US4791033-A   ENERGY RES CORP (ENER-Non-standard);  MITSUBISHI DENKI KK (MITQ)   PATEL P;  US4792436-A   KINETICS TECHN INT (KINE-Non-standard)   TSAI F W;  US4792502-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  VANDINE L L;  US4800138-A   INT FUEL CELLS COR (ITFU-Non-standard)   ROMANOWSKI W E,  SULJAK G T;  US4801356-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   GRASSO A P;  US4804580-A   INT FUEL CELLS CORP (ITFU)   SINGELYN J D;  US4804591-A   INT FUEL CELLS CORP (ITFU)   GRASSO A,  VOGEL W,  TAYLOR W;  US4810485-A   INST GAS TECHNOLOGY (IGTE)   MARIANOWSK L G,  FLEMING D K;  US4816040-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   BONVILLE L J,  SEDERQUIST R A,  GRASSO A P;  US4816353-A   INT FUEL CELLS CORP (ITFU);  US4822521-A   UOP INC (UNVO)   FUDERER A;  US4824738-A   ;  US4824740-A   INT FUEL CELLS CORP (ITFU)   ABRAMS M L,  DAQUILA D L,  SCHEFFLER G W;  US4826742-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US4828940-A   INT FUEL CELLS CORP (ITFU)   COHEN R,  BUSWELL R F;  US4830091-A   BASF AG (BADI)   DIERKE R,  SCHLICHTHA G,  SCHUCHART P,  SCHWEITZER A;  US4830834-A   HALDOR TOPSOE AS (TOPS);  STAHL H O (STAH-Individual);  EPRI ELEC POWER RES (EPRI-Non-standard)   STAHL H O,  ROSTRUPNIE J R;  US4835072-A   INT FUEL CELLS CORP (ITFU)   GRASSO A P,  VOGEL W M;  US4836831-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J;  US4838020-A   MITSUBISHI DENKI KK (MITQ)   FUJITSUKA M;  US4838897-A   HITACHI LTD (HITA)   AMANO Y,  YOKOYAMA E,  OOYACHI H;  US4839247-A   INT FUEL CELLS CORP (ITFU)   LEVY A H,  VANDINE L L,  TROCCIOLA J C;  US4841723-A   GENERAL ELECTRIC CO (GENE)   COFFINBERR G A,  LAU M M;  US4842844-A   BOEING CO (BOEI)   HARRIS W G,  SILVA D J;  US4844837-A   ENGELHARD MINERALS CORP (ENGH);  US4847051-A   INT FUEL CELLS CORP (ITFU)   PARENTI E K;  US4848387-A   MOBIL OIL CORP (MOBI)   HOM C C;  US4849187-A   TOYO ENG CORP (TOXS)   UOZU H,  NAITOH A,  NUMAGUCHI T;  US4855192-A   INT FUEL CELLS CORP (ITFU);  INTE FUEL CELLS COR (ITFU-Non-standard)   GRASSO A P;  US4861347-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  SULJAK G T;  US4865624-A   NIPPON SANSO KK (NIIO)   OKADA H;  US4865926-A   INT FUEL CELLS CORP (ITFU)   LEVY A H,  WERTHEIM R J;  US4869894-A   AIR PROD & CHEM INC (AIRP)   WANG S I,  KOCH W R;  US4876163-A   WESTINGHOUSE ELECTRIC CORP (WESE)   REICHNER P;  US4877592-A   ;  US4879189-A   INT FUEL CELLS CORP (ITFU)   SNOPKOWSKI D J;  US4888031-A   SHELL INT RES MIJ BV (SHEL)   MARTENS F J;  US4888130-A   BANQUY D L (BANQ-Individual);  FOSTER WHEELER CORP (FOSX)   BANQUY D L;  US4892717-A   ;  US4897089-A   ;  US4897253-A   JOHNSON MATTHEY PLC (JOHO)   JENKINS J W;  US4902586-A   INT FUEL CELLS CORP (ITFU)   WERTHEIM R J;  US4904455-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US4909808-A   NAT AERO & SPACE ADMIN (USAS)   VOECKS G E;  US4909809-A   TOYO ENG CORP (TOXS)   OSAKI K,  UOZU H,  YANARU H;  US4910099-A   US DEPT ENERGY (USAT)   GOTTESFELD S;  US4919844-A   AIR PROD & CHEM INC (AIRP)   SHOOUI W;  US4921680-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   BONK S P,  MORGANTHAL G F,  MIURA Y;  US4923767-A   INT FUEL CELLS CORP (ITFU)   GRASSO A P,  VOGEL W M;  US4923768-A   FUJI ELECTRIC MFG CO LTD (FJIE)   KANEKO H,  NISHIGAKI H;  US4925456-A   ;  US4935037-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SEIKI N,  HANZAWA A;  US4943493-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G;  US4946750-A   KTI GROUP BV (KTIK-Non-standard);  KINETICS TECHN INT (KINE-Non-standard);  US4952380-A   ;  US4971601-A   TEXACO INC (TEXC)   NAJJAR M S,  GATES W C;  US4973528-A   INT FUEL CELLS CORP (ITFU)   SANDERSON R A;  US4973529-A   INT FUEL CELLS SOUT (LTFU-Non-standard)   GRASSO A P,  VOGEL W M,  TAYLOR A,  DUFNER B F;  US4976747-A   INT FUEL CELLS CORP (ITFU)   SZYDLOWSKI D F,  LESIEUR R R;  US4981676-A   MINET R G (MINE-Individual)   MINET R G,  TSOTSIS T T;  US4985231-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US4988580-A   TOYO ENG CORP (TOXS)   OHSAKI K,  SHIMA K,  OSAKI K,  OKADA M;  US4993368-A   ARMADA INVEST GRP (ARMA-Non-standard)   JONES H P,  WOODWARD R M;  US4994331-A   INT FUEL CELLS CORP (ITFU);  COHEN R (COHE-Individual)   COHEN R;  US4999029-A   BASF AG (BADI);  LUETH G (LUET-Individual)   LUETH G,  BECKER R,  HORN R K,  KEMPE U,  VODRAZKA W;  US4999133-A   BANQUY D L (BANQ-Individual);  FOSTER WHEELER CORP (FOSX)   BANQUY D L;  US5000926-A   MITSUBISHI GAS CHEM CO INC (MITN);  MITSUBISHI HEAVY INDS (MITO)   MURAYAMA K,  KUWA M;  US5004592-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  TWIGG M V;  US5006131-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US5011625-A   KELLOGG CO M W (PULL)   LEBLANC J R;  US5011670-A   AIR PROD & CHEM INC (AIRP)   DAVIS R A,  NICHOLAS D M,  SMITH D D,  WANG S I,  WRIGHT R A;  US5013617-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W;  US5019356-A   ING SILBERRING AG (SILB-Non-standard);  SILBERRING L (SILB-Individual)   SILBERRING L;  US5019463-A   YAMAHA HATSUDOKI KK (YMHA)   MATSUBARA H,  MIZUNO Y,  HANAJIMA T;  US5026536-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENTER (PETR-Non-standard);  ZH SEIKIYU SANGYO KASSEI (SEKI-Non-standard)   SHIOIRI T,  SATAKE S,  SEKIDO Y,  FUJISOU T,  OBUCHI A,  KATO H;  US5030440-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J,  TWIGG M V;  US5030661-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US5032365-A   MITSUBISHI DENKI KK (MITQ)   ITO N,  TSURU K,  AONO A;  US5034287-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US5035867-A   INST FRANCAIS DU PETROLE (INSF)   DANG V,  HUIN R,  EUZEN J P;  US5039510-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  TWIGG M V;  US5043232-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B,  TANRIKUT Y B;  US5045297-A   ;  US5045414-A   INT FUEL CELLS CORP (ITFU)   BUSHNELL C L,  DAVIS C L;  US5047299-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SHOCKLING L A;  US5059494-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G,  LANDAU M B;  US5064732-A   INT FUEL CELLS CORP (ITFU)   MEYER A P;  US5064733-A   GAS RES INST (GASR-Non-standard)   KRIST K,  SAMMELLS A F;  US5071719-A   HALDOR TOPSOE AS (TOPS)   ROSTRUPNIE J R,  JORN E;  US5079105-A   ASEA BROWN BOVERI A (ALLM)   BOSSEL U;  US5080875-A   HWT GES HYDRID WASS (HWTH-Non-standard)   BERNAUER O;  US5084363-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US5087271-A   TEXACO INC (TEXC)   STELLACCIO R J,  DACH M M;  US5092121-A   ;  US5093178-A   ;  US5096470-A   BOC GROUP PLC (BRTO)   KRISHNAMUR R;  US5096674-A   FUJI ELECTRIC MFG CO LTD (FJIE)   SHINKAI H;  US5098690-A   UOP (UNVO)   KOVES W J;  US5106390-A   AMER POWER & WASTE (AMPO-Non-standard)   BEIERLE F P,  MAZZAWI M;  US5106590-A   DAVY MCKEE LONDON LTD (POGC)   HOPPER A,  HILL G,  DUNSTER M;  US5110559-A   HITACHI LTD (HITA)   KONDO Y,  AMANO Y,  KIMURA S,  HORIUCHI S;  US5112578-A   MITSUBISHI GAS CHEM CO INC (MITN)   MURAYAMA K,  YAMAGUCHI M,  NAKAMURA T;  US5122299-A   KELLOGG CO M W (PULL)   LEBLANC J R;  US5132174-A   INT FUEL CELLS CORP (ITFU)   ROMANOWSKI W E,  KOCUM F A;  US5141823-A   VICKERS SHIPBUILDING & ENG (VICS)   WRIGHT B J,  SEYMOUR C M,  ADAMS V W,  CATCHPOLE J P;  US5143800-A   WESTINGHOUSE ELECTRIC CORP (WESE)   REICHNER P,  GEORGE R A,  HOOVER D Q,  SHOCKLING L A;  US5149600-A   PETRO ENERGY CENT (PETR-Non-standard);  SEKIYU SANGYO KASSEI (SEKI-Non-standard);  SHOWA SHELL SEIKIYU KK (SHEL)   YAMASE O,  YOSHIZAWA S,  MIURA T;  US5152975-A   TEXACO DEV CORP (TEXC)   FONG W C F,  CHAN H C,  SUGGITT R M,  QUINTANA M E;  US5156821-A   ;  US5156926-A   MTU FRIEDRICHSHAFEN AG (MOTU)   LEMOINE J;  US5164163-A   KOBE SEIKO SHO KK (KOBM)   AOKI M,  IMOTO Y,  SUGIMURA H,  OTANI K;  US5169730-A   WESTINGHOUSE ELECTRIC CORP (WESE)   REICHNER P,  DOSHI V B;  US5181937-A   STONE & WEBSTER ENG CORP (STWE)   KARAFIAN M,  TSANG I C;  US5193635-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANAJIMA T,  MATSUBARA H;  US5199961-A   TOYO ENG CORP (TOXS)   OHSAKI K,  NAITO A,  SHIMA K;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5202195-A   INT FUEL CELLS CORP (ITFU)   STEDMAN J K,  TROCCIOLA J C;  US5207185-A   GREINER L (GREI-Individual)   GREINER L,  MOARD D M;  US5209908-A   ;  US5213912-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R,  SEDERQUIST R A,  OLESEN O L;  US5221586-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI);  TOKYO GAS CO LTD (TOLG);  OSAKA GAS CO LTD (OSAG);  TOHO GAS KK (TOHG)   MORIMOTO H,  HATO,  HATORI S,  KOBAYASHI K,  UEMATSU H,  HIKITA T,  SHINOZAKI K,  NAKAGAWA S;  US5226928-A   TOKYO ELECTRIC POWER CO (TOEP);  KOBE SEIKO SHO KK (KOBM)   MAKABE T,  SATO H,  HAGIWARA A,  AOKI M,  SUGIMURA H,  KAWABATA T;  US5229102-A   MEDALERT INC (MEDA-Non-standard)   MINET R G,  TSOTSIS T T;  US5229222-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5229345-A   ;  US5235846-A   INT FUEL CELLS CORP (ITFU)   FANCIULLO S;  US5242673-A   MASSACHUSETTS INST TECHNOLOGY (MASI)   FLYTZANI-STEPHANOPOULOS M,  HU Z;  US5245110-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P,  FRALEY L D;  US5248566-A   US DEPT ENERGY (USAT)   KUMAR R,  AHMED S,  KRUMPELT M,  MYLES K M;  US5248567-A   TOSHIBA KK (TOKE)   TAKASHI A,  TETSUYA F,  MOTOHIRO T,  MASAHIRO A,  YUJI N,  SATOSHI S;  US5250270-A   KELLOGG CO M W (PULL)   NOE S A;  US5260143-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5260640-A   US DEPT ENERGY (USAT)   CARABETTA R A,  STAATS G E,  CUTTING J C;  US5271916-A   GENERAL MOTORS CORP (GENK)   GUANTE J,  VANDERBORGH N E,  NGUYEN T V;  US5275632-A   INT FUEL CELLS CORP (ITFU)   CORRIGAN T J;  US5290641-A   FUJI ELECTRIC MFG CO LTD (FJIE)   HARASHIMA K;  US5299536-A   MOARD D (MOAR-Individual);  GREINER L (GREI-Individual)   GREINER L,  MOARD D;  US5300275-A   IMPERIAL CHEM IND PLC (ICIL)   LYWOOD W J;  US5302470-A   OSAKA GAS CO LTD (OSAG);  US5308456-A   INT FUEL CELLS CORP (ITFU)   OLESEN O L,  KUNZ H R,  SEDERQUIST R A;  US5316747-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  TALABA M,  MCNEILLY L,  WATKINS D S,  LINES D A;  US5326550-A   UNIV BRITISH COLUMBIA (UYBR)   ADRIS A M,  GRACE J R,  LIM C J,  ELNASHAIE S S;  US5330727-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SCHROLL C R,  LESIEUR R R;  US5330857-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SEDERQUIST R A,  SMITH M J,  FARRIS P J;  US5335628-A   AQUA CHEM INC (AQAC)   DUNBAR W R;  US5340663-A   INT FUEL CELLS CORP (ITFU)   BUSWELL R F,  VARTANIAN G;  US5341313-A   ;  US5344721-A   TOSHIBA KK (TOKE)   MUNEUCHI A,  MURATA K;  US5346778-A   ENERGY PARTNERS INC (ENER-Non-standard)   EWAN J M,  MISIASZEK S M,  ALESSI D P;  US5346779-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   NAKAZAWA K;  US5360679-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US5362453-A   UHDE GMBH (UHDE)   MARSCH H;  US5366704-A   UOP (UNVO)   THRONDSON R L,  PETERS K D,  KOVES W J;  US5366818-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  WATKINS D S,  PRATER K B;  US5366819-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  HARTVIGSEN J J;  US5366820-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5380600-A   HALDOR TOPSOE AS (TOPS)   HANSEN T,  JORN E;  US5382271-A   IND TECHNOLOGY RES INST (ITRI)   CHENG Y,  NG M L,  YOUNG M;  US5419978-A   INT FUEL CELLS CORP (ITFU)   LANDAU M B;  US5421840-A   EXXON RES & ENG CO (ESSO)   TAYLOR J H,  SAY G R;  US5429809-A   HALDOR TOPSOE AS (TOPS)   STAHL H O,  TOPSOE H F A;  US5432021-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5436086-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   SEYMOUR C M,  DAMS R A D;  US5437123-A   MOARD D M (MOAR-Individual);  GREINER L (GREI-Individual);  BHATT B (BHAT-Individual)   BHATT B,  GREINER L,  MOARD D M;  US5441546-A   MOARD D (MOAR-Individual);  GREINER L (GREI-Individual)   MOARD D,  GREINER L;  US5441819-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5441821-A   BALLARD POWER SYSTEMS INC (BLRD)   GORBELL B N,  MERRITT R D;  US5447702-A   KELLOGG CO M W (PULL)   HENNINGSEN G B,  CAMPBELL W M;  US5451249-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  LESIEUR R R,  SANDELLI G J,  SPIEGEL R J,  TROCCIOLA J C,  HEALY H C;  US5456889-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  TALABA M,  MCNEILLY L,  WATKINS D S,  LINES D A;  US5458857-A   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  US5461864-A   CATALYTICA INC (CATA-Non-standard);  TANAKA KIKINZOKU KOGYO KK (TANI)   DALLA BETTA R A,  SHOJI T,  TANAKA S;  US5462358-A   AT & T IPM CORP (AMTT)   WERNER W V;  US5462719-A   ATLANTIC RICHFIELD CO (ATLF)   LITCHFIELD J F,  PEDERSEN M J,  SAMPATH V R;  US5464606-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  BUSWELL R F,  CLAUSI J V;  US5470360-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A;  US5470671-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  LAMONT G J,  BASURA V,  VOSS H H,  WILKINSON D P;  US5472986-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P;  US5482680-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5484576-A   BAYER AG (FARB)   LANGER R,  BUYSCH H,  WAGNER P;  US5484577-A   BALLARD POWER SYSTEM INC (BLRD)   LEAVITT S L,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US5486313-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   DE JONG K P,  SCHOONEBEEK R J,  VONKEMAN K A,  LEDNOR P W,  OUD A E M,  VAN DER ZWET G P;  US5492682-A   SAES GETTERS SPA (SAES)   SUCCI M,  SOLCIA C,  DARCY L;  US5496531-A   EXXON RES & ENG CO (ESSO)   SAY G R,  FIATO R A,  DAVIS S M,  CLAVENNA L R;  US5503944-A   INT FUEL CELLS CORP (ITFU)   MARGIOTT P R,  MEYER A P,  SCHEFFLER G W;  US5510056-A   SHELL INT RES MIJ BV (SHEL)   JACOBS L L G,  LEDNOR P W,  LIMAHELU A G G,  SCHOONEBEEK R J,  VONKEMAN K A;  US5516344-A   INT FUEL CELLS CORP (ITFU)   CORRIGAN T J;  US5518827-A   MITSUBISHI ELECTRIC CORP (MITQ)   MATSUMURA M,  HIRAI C;  US5520891-A   LEE J M (LEEJ-Individual)   LEE J M;  US5527631-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SINGH P,  SHOCKLING L A,  GEORGE R A,  BASEL R A;  US5527632-A   ROLLS ROYCE & ASSOC LTD (RORO)   GARDNER F J;  US5529484-A   MOARD D M (MOAR-Individual);  GREINER L (GREI-Individual)   GREINER L,  MOARD D M;  US5543532-A   DU PONT DE NEMOURS & CO E I (DUPO)   KOURTAKIS K,  SONNICHSEN G C;  US5546701-A   HYDROGEN BURNER TECHNOLOGY INC (HYDR-Non-standard)   BHATT B,  MOARD D M,  GREINER L;  US5547776-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  CHOW C Y,  POW E G,  WOZNICZKA B M,  VOSS H H,  HORNBURG G;  US5554347-A   INST FRANCAIS DU PETROLE (INSF);  GAZ DE FRANCE (GAZD)   BUSSON C,  DELHOMME H,  GOLLION L,  CASSAGNE J P;  US5554351-A   HALDOR TOPSOE AS (TOPS)   IVARSEN PRIMDAHL I;  US5560890-A   GAS RES INST (GASR-Non-standard)   CALCOTE H F,  BERMAN C H;  US5565009-A   STANDARD OIL CO OHIO (STAH)   RUHL R C,  KENYON M R,  HARDMAN S,  MCFARLANE R A;  US5567397-A   ;  US5567398-A   STANDARD OIL CO OHIO (STAH)   RUHL R C,  FELICE R A;  US5573866-A   INT FUEL CELLS CORP (ITFU)   MARICLE D L,  VAN DINE L L;  US5578093-A   ;  US5588974-A   ;  US5593640-A   BALL CORP (BALP)   LYNCH F,  LONG E,  SCHMIDT J;  US5604047-A   ;  US5609834-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   HAMADA K,  MIZUSAWA M,  KOGA M;  US5612012-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  ISOMURA M;  US5618322-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5628931-A   SHELL CANADA LTD (SHEL)   LEDNOR P W,  SENDEN M M G,  VAN DER ZWET G P;  US5637415-A   GENERAL MOTORS CORP (GENK)   MELTSER M A,  HOCH M M;  US5639401-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   JACOBS L L G,  LEDNOR P W,  VAN LOON P J M,  OOSTERVELD M,  VONKEMAN K A,  WENTINCK H M,  VAN DER ZWET G P,  LANGE J P;  US5639431-A   TOKYO GAS CO LTD (TOLG);  MITSUBISHI JUKOGYO KK (MITO)   SHIRASAKI Y,  GONDAIRA M,  OHTA Y,  UCHIDA H,  KURODA K,  UCHIDA T,  FUJIMOTO Y,  MAKIHARA H,  OHTA S,  KOBAYASHI K;  US5643692-A   OHMI T (OHMI-Individual)   OHMI T;  US5645950-A   DAIMLER-BENZ AG (DAIM)   FLECK W;  US5648051-A   CHEVRON USA INC (CALI)   BACHTEL R W,  DARSOW B A,  EARLS D E,  JOHNSON D R,  KLETT R J,  KRAMER D C,  REYNOLDS B E,  SCHEUERMAN G L,  TRIMBLE H J,  BROSSARD D N;  US5648182-A   EQUOS RES KK (EQUS);  AISIN AW CO LTD (AISW)   HARA T,  KATO K,  TAKADA C;  US5651800-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5669960-A   PRAXAIR TECHNOLOGY INC (PRAX)   COUCHE M R;  US5676911-A   CANADA MIN NAT DEFENCE (MIND)   BAUMERT R M,  EPP D G,  PETERS E J;  US5700595-A   INT FUEL CELLS CORP (ITFU)   REISER C;  US5705138-A   ;  US5707917-A   ENGELHARD DE MEERN BV (ENGH)   GEUS J W,  OVERBEEK R A;  US5712052-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S;  US5716587-A   KHANMAMEDOV T K (KHAN-Individual)   KHANMAMEDOV T K;  US5718881-A   INT FUEL CELLS INC (ITFU)   BONK S P,  CORRIGAN T J,  SEDERQUIST R A,  SZYDLOWSKI D F;  US5728183-A   HYDROGEN BURNER TECHNOLOGY INC (HYDR-Non-standard)   HERZIG A M;  US5730763-A   KORTEC AG (KORT-Non-standard)   MANOLESCU M T,  VAN,  VANDENHOEC J P;  US5733347-A   INT FUEL CELLS CORP (ITFU)   LESIEUR R R;  US5733675-A   WESTINGHOUSE ELECTRIC CORP (WESE)   HAGER C A,  DEDERER J T;  US5733941-A   MARATHON OIL CO (MAOC)   WAYCUILIS J J;  US5741440-A   EASTMAN CHEM CO (EACH)   COOPER J L,  INGRAM E M;  US5741474-A   NGK INSULATORS LTD (NIGA)   ISOMURA M,  SOMA T,  TAKAHASHI T;  US5746985-A   NGK INSULATORS LTD (NIGA)   TAKAHASHI T;  US5750076-A   BALLARD POWER SYSTEMS INC (BLRD)   MCNEILLY L,  WATKINS D S,  BUSWELL R F,  COHEN R;  US5763114-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  ELANGOVAN S,  HARTVIGSEN J J;  US5763765-A   BALLARD POWER SYSTEMS INC (BLRD)   LAMONT G J,  WILKINSON D P;  US5769909-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  SZYDLOWSKI D F,  CORRIGAN T J,  BONK S P,  LESIEUR R R;  US5792572-A   INT FUEL CELLS CORP (ITFU);  CLC SRL (CLCC-Non-standard)   FOLEY P F,  LUCZAK F J,  PRESTON J L,  TEELING C R,  BREAULT R D,  FREDLEY R R,  SCHEFFLER G W;  US5800792-A   TEISAN KK (TEIS)   IBARAKI Y,  INA H,  KAWANAKA H;  US5823761-A   INST FRANCAIS DU PETROLE (INSF)   EUZEN P,  LE GAL J,  MARTIN G;  US5840270-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5840437-A   SULZER INNOTEC AG (SULZ)   DIETHELM R;  US5843195-A   TOYOTA JIDOSHA KK (TOYT)   AOYAMA S;  US5858314-A   ZTEK CORP (ZTEK-Non-standard)   HSU M S,  HOAG E D;  US5861137-A   EDLUND D J (EDLU-Individual)   EDLUND D J;  US5869011-A   LEE J M (LEEJ-Individual)   LEE J M;  US5874051-A   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US5876469-A   CHIYODA CORP (CHIY)   MORIYA N,  KAWAI T,  YAGI H,  SHIMIZU R,  MORITA Y;  US5897970-A   NGK INSULATORS LTD (NIGA)   ISOMURA M,  SOMA T,  TAKAHASHI T;  US5904907-A   ;  US5914091-A   ATMI ECOSYS CORP (ATMI-Non-standard)   HOLST M R,  OLANDER W K,  TOM G M;  US5916529-A   CHEVRON USA INC (CALI)   SCHEUERMAN G L;  US5925322-A   H-POWER CORP (HPOW-Non-standard)   WERTH J;  US5931658-A   INT FUEL CELLS CORP (ITFU)   SEDERQUIST R A,  SZYDLOWSKI D F,  CORRIGAN T J,  BONK S P;  US5935531-A   MANNESMANN AG (MANS);  KTI GROUP BV (KTIK-Non-standard)   GIACOBBE F;  US5938800-A   MCDERMOTT TECHNOLOGY INC (MCDE-Non-standard)   VERRILL C L,  MCILROY R A,  PRIVETTE R M,  CHANEY L J,  KNEIDEL K E;  US5939031-A   EXXON RES & ENG CO (ESSO)   ELLIS E S,  FREDERICK J W,  GUPTA R,  DANKWORTH D C,  TSANGARIS D M;  US5942197-A   EXXON RES & ENG CO (ESSO)   GUPTA R,  FREDERICK J W,  ELLIS E S,  DANKWORTH D C,  TSANGARIS D M;  US5942203-A   STARCHEM INC (STAR-Non-standard)   VAN DIJK C P,  FRALEY L D;  US6126908-A   LITTLE INC ARTHUR D (LITT)   CLAWSON L G;  US6245303-B1   LITTLE INC ARTHUR D (LITT)   BENTLEY J M,  MITCHELL W L,  CLAWSON L G,  CROSS J C;  US35002-E   YAMAHA HATSUDOKI KK (YMHA)   MATSUBARA H,  MIZUNO Y,  HANASHIMA T;  US36148-E   SIEMENS AG (SIEI)   STRASSER K;  WO1997044123-A1   ;  WO1998008771-A2