;  US6591907-B2 -- CA1165361-A   MITSUBISHI DENKI KK (MITQ)   KOBAYASHI T;  CA1168283-A   MITSUBISHI ELECTRIC CORP (MITQ);  CA1196594-A   CANADIAN LIQUID AIR LTD (AIRL)   SAVARD G,  LEER G H;  CA1253555-A   SHELL INT RES MIJ BV (SHEL)   VANEGMOND C F H,  VANMEURS P;  CA2015460-A   KISMAN K E (KISM-Individual)   KISMAN K E;  CA1288043-C   ;  EP570228-A1   BOC GROUP INC (BRTO)   SHIRLEY A I,  RAMACHANDRAN R;  EP940558-A1   SHELL INT RES MIJ BV (SHEL)   BIELAMOWICZ L J,  DE ROUFFIGNAC E,  VINEGAR H J,  WELLINGTON S L;  GB156396-A   ;  GB674082-A   ;  GB697189-A   ;  GB1454324-A   INST NAT INDS EXTRACTIVE (NAIN-Non-standard);  GB1501310-A   INST NAT IND EXTRAC (NAIN-Non-standard);  GB2086416-A   LEDENT P (LEDE-Individual);  INST DEV GAZEIFICAT (GAZE-Non-standard);  SE121737   ;  SE123136   ;  SE123137   ;  SE123138   ;  SE126674   ;  SU1836876-A3   SKOCHINSKII MINING INST (SKMI)   ILYUSHA A V,  GLAZOV D D,  KARTAVYI N G;  US94813-A   ;  US326439-A   ;  US760304-A   ;  US1269747-A   ;  US1342741-A   ; 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 US3084919-A   ;  US3095031-A   ;  US3105545-A   ;  US3106244-A   ;  US3110345-A   ;  US3113619-A   ;  US3113623-A   ;  US3114417-A   ;  US3116792-A   ;  US3120264-A   ;  US3127935-A   ;  US3127936-A   ;  US3131763-A   ;  US3132692-A   ;  US3139928-A   ;  US3142336-A   ;  US3149670-A   ;  US3149672-A   ;  US3163745-A   ;  US3164207-A   ;  US3181613-A   ;  US3182721-A   ;  US3183675-A   ;  US3191679-A   ;  US3205944-A   ;  US3205946-A   ;  US3207220-A   ;  US3208531-A   ;  US3209825-A   ;  US3233668-A   ;  US3237689-A   ;  US3241611-A   ;  US3250327-A   ;  US3267680-A   ;  US3273640-A   ;  US3275076-A   ;  US3284281-A   ;  US3294167-A   ;  US3310109-A   ;  US3316962-A   ;  US3338306-A   ;  US3352355-A   ;  US3379248-A   ;  US3380913-A   ;  US3528501-A   PHILLIPS PETROLEUM CO (PHIP);  US3547193-A   ELECTROTHERMIC CO (ELEC-Non-standard);  US3562401-A   ;  US3595082-A   ;  US3599714-A   MESSMAN RL, BECKER KE, ME (MES-Individual);  US3605890-A   CHEVRON RES CO (CALI);  US3617471-A   TEXACO INC (TEXC);  US3661423-A   OCCIDENTAL PETROLEUM CORP (OCCI);  US3675715-A   CLARK FA (CLA-Individual);  US3680633-A   SUN OIL CO (SUNO);  US3766982-A   JUSTHEIM PETROLEUM CO (JUS-Non-standard);  US3770398-A   CITIES SERVICE OIL CO (CITI);  US3775185-A   UNITED AIRCRAFT CORP (UNAC);  US3794116-A   US ATOMIC ENERGY COMMISSION (USAT);  US3809159-A   CONTINENTAL OIL CO (CONO);  US3882941-A   CITIES SERVICE RES & DEV CO (CITI)   PELOFSKY A H;  US3922148-A   TEXACO DEV CORP (TEXC);  US3924680-A   IN SITU TECHN INC (INSI-Non-standard)   TERRY R C;  US3948319-A   ATLANTIC REFINING CO (ATLR);  PETRO-CANADA (PETR-Non-standard)   PRITCHETT W C;  US3954140-A   HENDRICK R P (HEND-Individual)   HENDRICK R P;  US3973628-A   NEW MEXICO TECH RES (NEWM-Non-standard)   COLGATE S A;  US3986349-A   CHEVRON RES CO (CALI)   EGAN C J;  US3993132-A   TEXACO EXPLORATION (TEXC)   CRAM P J,  REDFORD D A;  US3999607-A   EXXON RES & ENG CO (ESSO)   PENNINGTON R E,  GIBSON M A,  ARNOLD G T;  US4008762-A   FISHER S T (FISH-Individual)   FISHER S T,  FISHER C B;  US4016239-A   UNION OIL CO CALIFORNIA (UNOC)   FENTON D M;  US4019575-A   CHEVRON RES CO (CALI)   PISIO P,  KIRKVOLD C F;  US4026357-A   TEXACO EXPLORATION (TEXC)   REDFORD D A;  US4043393-A   FISHER S T (FISH-Individual);  US4049053-A   FISHER S T (FISH-Individual)   FISHER S T,  FISHER C B;  US4067390-A   TECHNO APPL SERVICE (TECH-Non-standard)   CAMACHO S L,  CIRCEO L J;  US4069868-A   IN SITU TECHN INC (INSI-Non-standard)   TERRY R C;  US4076761-A   MOBIL OIL CORP (MOBI)   CHANG C D,  SILVESTRI A J;  US4084637-A   CANADA-CITIES SERVI (CITI);  IMPERIAL OIL LTD (IMOI);  PETRO CANADA EXPLORATION (PETR-Non-standard);  CANADA-CITIES SERVICE (CACI-Non-standard)   TODD J C;  US4087130-A   OCCIDENTAL PETROLEUM CORP (OCCI)   GARRETT D E;  US4089372-A   IN SITU TECHN INC (INSI-Non-standard)   TERRY R C;  US4089374-A   IN SITU TECHN INC (INSI-Non-standard)   TERRY R C;  US4091869-A   EXXON RES & ENG CO (ESSO)   HOYER W A;  US4093025-A   IN SITU TECHN INC (INSI-Non-standard)   TERRY R C;  US4093026-A   OCCIDENTAL OIL SHALE INC (OCCI)   RIDLEY R D;  US4096163-A   MOBIL OIL CORP (MOBI)   CHANG C D,  LANG W H,  SILVESTRI A J,  SMITH R L;  US4099567-A   IN SITU TECHNOLOGY (INSI-Non-standard)   TERRY R C;  US4114688-A   IN SITU TECHNOLOGY (INSI-Non-standard)   TERRY R C;  US4130575-A   TOPSOE H F A AS (TOPS);  US4133825-A   BRITISH GAS CORP (GASC);  US4138442-A   MOBIL OIL CORP (MOBI)   CHANG C D,  SILVESTRI A J;  US4144935-A   IIT RES INST (IITR)   BRIDGES J,  TAFLOVE A;  US4183405-A   MAGNIE R L (MAGN-Individual)   MAGNIE R L;  US4186801-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  VOGEL R F,  SWIFT H E;  US4197911-A   ANADA H R (ANAD-Individual)   ANADA H R;  US4228854-A   RES COUN OF ALBERTA (ALBE-Non-standard)   SACUTA A;  US4243101-A   GRUPPING A W (GRUP-Individual);  US4250230-A   IN SITU TECHN INC (INSI-Non-standard)   TERRY R C;  US4250962-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  VOGEL R F,  SWIFT H E;  US4252191-A   DEUT TEXACO AG (TEXC);  US4273188-A   GULF RES & DEV CO (GULF)   VOGEL R F,  MADGAVKAR A M,  SWIFT H E;  US4274487-A   STANDARD OIL CO INDIANA (STAD)   HOLLINGSWO F H,  JENKINS G R,  KIRKPATRIC J W,  MOWER L N;  US4277416-A   AMINOIL (AMIN-Non-standard)   GRANT N A;  US4299086-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  VOGEL R F,  SWIFT H E;  US4299285-A   GULF RES & DEV CO (GULF)   TSAI S C,  GRAHAM R H,  ODER R R;  US4306621-A   BOYD R M (BOYD-Individual)   BOYD R M,  FISCHER D D,  HUMPHREY A E,  KING S B,  WHITMAN F L;  US4324292-A   UNIV UTAH (UTAH)   JACOBS H R,  UDELL K S;  US4344483-A   FISHER C B (FISH-Individual)   FISHER C B,  FISHER S T;  US4353418-A   STANDARD OIL CO INDIANA (STAD)   HOEKSTRA G B,  CHRISTIAN D R;  US4359687-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4363361-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  VOGEL R F;  US4366668-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  VOGEL R E,  SWIFT H E;  US4378048-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  SWIFT H E;  US4381641-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  SWIFT H E;  US4384613-A   TERRA TEK INC (TEFO)   OWEN L B,  SCHATZ J F,  AHMED U;  US4396062-A   UNIV UTAH (UTAH)   ISKANDER M F;  US4397732-A   INT COAL REFINING CO (ITCO-Non-standard)   HOOVER D S,  GIVENS E N;  US4398151-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4407973-A   KELLOGG CO M W (PULL)   VANDIJK C P,  ROVNER J M,  SOLBAKKEN A;  US4409090-A   UNIV UTAH (UTAH)   HANSON F V,  MILLER J D,  OBLAD A G;  US4412124-A   MITSUBISHI DENKI KK (MITQ)   KOBAYASHI T;  US4423311-A   VARNEY P (VARN-Individual)   VARNEY P;  US4444255-A   GEOFFREY L (GEOF-Individual)   GEOFFREY L,  CARR R,  CARR D L,  FLAGG R H;  US4444258-A   KALMAR N (KALM-Individual)   KALMAR N;  US4448251-A   UOP INC (UNVO)   STINE L O;  US4448252-A   IN SITU TECHN INC (INSI-Non-standard)   STODDARD X T,  VASEEN V A,  TERRY R C;  US4457365-A   RAYTHEON CO (RAYT)   KASEVICH R S,  KOLKER M,  DWYER A S;  US4463807-A   IN SITU TECHN INC (INSI-Non-standard)   STODDARD X T,  VASEEN V A,  TERRY R C;  US4476927-A   MOBIL OIL CORP (MOBI)   RIGGS J B;  US4485869-A   IIT RES INST (IITR)   SRESTY G C,  SNOW R H,  BRIDGES J E;  US4489782-A   ATLANTIC RICHFIELD CO (ATLF)   PERKINS T K;  US4501445-A   CITIES SERVICE CO (CITI)   GREGOLI A A;  US4508170-A   VEBA OEL ENTWICKLUNGS GMBH (SCOV);  LITTMANN W (LITT-Individual)   LITTMANN W;  US4513816-A   SOC NAT ELF AQUITAINE (ERAP)   MIFFRE H;  US4524113-A   UNITED TECHNOLOGIES CORP (UNAC)   LESIEUR R R;  US4524826-A   TEXACO INC (TEXC)   SAVAGE K D;  US4530401-A   MOBIL OIL CORP (MOBI)   HARTMAN K J,  SHU W R;  US4537252-A   STANDARD OIL CO INDIANA (STAD)   PURI R;  US4540882-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4542648-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4549396-A   MOBIL OIL CORP (MOBI)   GARWOOD W E,  KUO C,  JACOB S M,  WISE J J;  US4570715-A   SHELL OIL CO (SHEL)   VANMEURS P,  VANEGMOND C F,  VAN EGMOND C F;  US4571491-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4572299-A   SHELL OIL CO (SHEL)   VANEGMOND C F,  VANMEURS P,  VAN MEURS P;  US4573530-A   MOBIL OIL CORP (MOBI)   AUDEH C A,  OFFENHAUER R D;  US4576231-A   TEXACO INC (TEXC)   DOWLING D J,  PALMER H A;  US4583046-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4583242-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4592423-A   TEXACO INC (TEXC)   SAVAGE K D,  PAAP H J;  US4594468-A   SHELL INT RES MIJ BV (SHEL)   MINDERHOUD J K,  SIE S T;  US4597441-A   WORLD ENERGY SYSTEM (WORL-Non-standard)   WARE C H,  ROSE L C,  ALLEN J C;  US4605680-A   CHEVRON RES CO (CALI)   BEUTHER H,  KIBBY C L,  KOBYLINSKI T P,  PANNELL R B;  US4608818-A   KRAFTWERK UNION AG (KRUN);  SIEMENS AG (SIEI)   GOEBEL K,  MULLER R,  SCHIFFERS U;  US4613754-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4616705-A   SHELL INT RES MIJ BV (SHEL)   STEGEMEIER G L,  MEURS P V,  VANEGMOND C F H;  US4626665-A   SHELL OIL CO (SHEL)   FORT W C,  FORTIII W C;  US4635197-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S C;  US4637464-A   AMOCO CORP (STAD);  CHEVRON USA INC (CALI)   FORGAC J M,  HOEKSTRA G R;  US4640352-A   SHELL INT RES MIJ BV (SHEL)   VANMEURS P,  WAXMAN M H,  VINEGAR H J;  US4644283-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4651825-A   ATLANTIC RICHFIELD CO (ATLF)   WILSON R;  US4658215-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4662438-A   UENTECH CORP (UENT-Non-standard);  US4662439-A   AMOCO CORP (STAD)   PURI R;  US4662443-A   AMOCO CORP (STAD)   PURI R,  ARRI L E,  GASH B W;  US4663711-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4671102-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  OMEARA D J,  ROHAN J A;  US4691771-A   WORLDENERGY SYS INC (WORL-Non-standard)   WARE C H,  ROSE L C;  US4694907-A   CARBOTEK INC (CARB-Non-standard)   STAHL C R,  GIBSON M A,  KNUDSEN C W;  US4704514-A   VAN EGMOND C F (VEGM-Individual)   VANEGMOND C F,  VANMEURS P,  VAN EGMOND C F,  VAN MEURS P;  US4716960-A   PROD TECHN INT INC (TECH-Non-standard);  PRODUCTION TECH INT (PROD-Non-standard)   EASTLUND B J,  SCHMITT K J,  BASS R M,  HARRISON J M;  US4719423-A   SHELL OIL CO (SHEL)   VINEGAR H J,  ROTHWELL W P;  US4728892-A   SHELL OIL CO (SHEL)   VINEGAR H J,  ROTHWELL W P;  US4730162-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4743854-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4762425-A   SHAKKOTTAI P (SHAK-Individual)   SHAKKOTTAI P,  VENKATESHA S P;  US4769602-A   SHELL OIL CO (SHEL)   VINEGAR H J,  TUTUNJIAN P N;  US4769606-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J,  WAXMAN M H;  US4772634-A   ENERGY RES CORP (ENER-Non-standard)   FAROOQUE M;  US4787452-A   MOBIL OIL CORP (MOBI)   JENNINGS A R;  US4793656-A   SHELL MINING CO (SHEL-Non-standard)   SIDDOWAY M A,  WESTBY T S;  US4817711-A   JEAMBEY C G (JEAM-Individual)   JEAMBEY C G;  US4818370-A   CITIES SERVICE OIL (CITI)   GREGOLI A A,  OKO U M,  LEDER F;  US4827761-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L;  US4848924-A   BABCOCK & WILCOX CO (BABW)   NUSPL S P,  SZMANIA E P,  KLEPPE J A,  NORTON P J;  US4856341-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L,  DEWAAL J A;  US4860544-A   CONCEPT RKK LTD (CONC-Non-standard)   KRIEG R K,  DRUMHELLER J A;  US4866983-A   SHELL OIL CO (SHEL)   VINEGAR H J,  DIFOGGIO R,  TUTUNJIAN P N;  US4884455-A   SHELL OIL CO (SHEL)   VINEGAR H J,  WELLINGTON S L,  DEWAAL J A;  US4886118-A   SHELL OIL CO (SHEL)   VANMEURS P,  DEROUFFIGN E P,  VINEGAR H J,  LUCID M F,  VAN MEURS P;  US4895206-A   PRICE E H (PRIC-Individual)   PRICE E H;  US4927857-A   ENGELHARD MINERALS CORP (ENGH);  US4928765-A   RAMEX SYN-FUELS INT (RAME-Non-standard)   NIELSON D H;  US4974425-A   CONCEPT RKK LTD (CONC-Non-standard);  RKK LTD (RKKR-Non-standard)   KRIEG R K,  DRUMHELLER J A;  US4983319-A   CANADIAN OCCIDENTAL PETROLEUM (OCCI)   GREGOLI A A,  OLAH A M,  HAMSHAR J A,  RIMMER D P;  US4984594-A   SHELL OIL CO (SHEL)   VINEGAR H J,  STEGEMEIER G L;  US4987368-A   SHELL INT RES MIJ BV (SHEL)   VINEGAR H J;  US4994093-A   KRUPP-KOPPERS GMBH (KOPS)   WETZEL R,  FIRNHABER B;  US5008085-A   RESOURCE TECHNOL AS (RESO-Non-standard)   BAIN R L,  LARSON J R;  US5014788-A   AMOCO CORP (STAD)   PURI R,  YEE D,  BUXTON T S,  MAJAHAN O;  US5020596-A   INDUGAS INC (INDU-Non-standard)   HEMSATH K H;  US5046559-A   SHELL OIL CO (SHEL)   GLANDT C A;  US5050386-A   RKK LTD (RKKR-Non-standard)   KRIEG R K,  DRUMHELLER J A;  US5057293-A   ;  US5060287-A   SHELL OIL CO (SHEL)   VANGEMOND C F H;  US5060726-A   SHELL OIL CO (SHEL)   GLANDT C A,  VINEGAR J H,  GARDNER J W;  US5064006-A   MAGRANGE INC (MAGR-Non-standard);  WATERS R L (WATE-Individual)   WATERS L R,  ROBERTS G F,  WALTERS P H,  CLARK H C,  FITZGERAID D D,  STELLY O V;  US5065818-A   SHELL OIL CO (SHEL)   VANEGMOND C F H;  US5082054-A   KIAMANESH A I (KIAM-Individual)   KIAMANESH A I;  US5082055-A   INDUGAS INC (INDU-Non-standard)   HEMSATH K H;  US5168927-A   SHELL OIL CO (SHEL)   STEGEMEIER G L,  PERRY G E;  US5182792-A   PETROBRAS PETROL BRASIL SA (PETB)   DECASTRO C A;  US5189283-A   SHELL OIL CO (SHEL)   CARL F G,  DE ROUFFIGNAC E P;  US5190405-A   SHELL OIL CO (SHEL)   VINEGAR H J,  STEGMEIER G L,  DE ROUFFIGNAC E P,  CHOU C C;  US5207273-A   PRODN TECHNOLOGIES INT INC (TECH-Non-standard)   CATES G O,  BASS R M,  SCHMITT K J;  US5211230-A   MOBIL OIL CORP (MOBI)   OSTAPOVICH E,  PEBDANI F N;  US5217076-A   MASEK J A (MASE-Individual)   MASEK J A;  US5226961-A   SHELL OIL CO (SHEL)   NAHM J J W,  VINEGAR H J,  KARANIKAS J M,  WYANT R E;  US5229102-A   MEDALERT INC (MEDA-Non-standard)   MINET R G,  TSOTSIS T T;  US5229583-A   SHELL OIL CO (SHEL)   VAN EGMOND C F,  CARL F G,  STEGEMEIER G L,  VINEGAR H J;  US5236039-A   GENERAL ELECTRIC CO (GENE)   EDELSTEIN W A,  VINEGAR H J,  MUELLER O M,  HSU C F;  US5255742-A   SHELL OIL CO (SHEL)   MIKUS T;  US5261490-A   NKK CORP (NIKN)   EBINUMA T;  US5284878-A   AIR PROD & CHEM INC (AIRP)   STUDER D W,  SCHAUB E S;  US5285846-A   FRAMO DEV UK LTD (FRAM-Non-standard)   MOHN F;  US5289882-A   MOORE B B (MOOR-Individual)   MOORE B B;  US5297626-A   SHELL CANADA LTD (SHEL)   VINEGAR H J,  GLANDT C A,  BECKEMEIER M A,  DE ROUFFIGNAC E P,  MIKUS T;  US5306640-A   SHELL OIL CO (SHEL)   TUTUNJIAN P N,  VINEGAR H J;  US5316664-A   CANADIAN OCCIDENTAL PETROLEUM (OCCI)   RIMMER D P,  HAMSHAR J A,  GREGOLI A A,  YILDIRIM E;  US5318116-A   SHELL OIL CO (SHEL)   DE ROUFFIGNAC E P,  CHOU C C,  STEGEMEIER G L,  VINEGAR H J;  US5339897-A   ESSO RESOURCES CANADA LTD (ESSO)   LEAUTE R P;  US5340467-A   CANADIAN OCCIDENTAL PETROLEUM (OCCI)   OLAH A M,  GREGOLI A A,  HAMSHAR J A,  RIMMER D P,  YILDIRIM E;  US5349859-A   SCI ENG INSTR INC (SCEN-Non-standard)   KLEPPE J A;  US5366012-A   SHELL CANADA LTD (SHEL);  SHELL INT RES MIJ BV (SHEL)   LOHBECK W C M;  US5388640-A   AMOCO CORP (STAD)   PURI R,  YEE D;  US5388641-A   AMOCO CORP (STAD)   PURI R,  YEE D,  SEIDLE J P;  US5388642-A   AMOCO CORP (STAD)   YEE D,  PURI R;  US5388643-A   AMOCO CORP (STAD)   PURI R,  YEE D;  US5388645-A   AMOCO CORP (STAD)   PURI R,  PENDERGRAFT P T;  US5391291-A   SHELL OIL CO (SHEL)   MILAM S N,  MURRAY B D,  RYAN R C,  HASTINGS T W,  WINQUIST B H C;  US5392854-A   SHELL OIL CO (SHEL)   GLANDT C A,  BECKEMEIER M A,  MIKUS T,  VINEGAR H J,  DE ROUFFIGNAC E P;  US5402847-A   CONOCO INC (CONO)   STANLEY M,  BOWSER P,  WILSON D R,  LIVELY P,  SANDARUSI J A;  US5404952-A   SHELL OIL CO (SHEL)   KARANIKAS J M,  DE ROUFFIGNAC E P,  GLANDT C A,  VINEGAR H J,  MIKUS T;  US5409071-A   SHELL OIL CO (SHEL)   GIPSON T C,  WELLINGTON S L,  VINEGAR H J;  US5411089-A   SHELL OIL CO (SHEL)   BAXLEY P T,  WELLINGTON S L,  BIELAMOWICZ L J,  VINEGAR H J,  DE ROUFFIGNAC E P;  US5411104-A   CONOCO INC (CONO)   STANLEY M L;  US5415231-A   MOBIL OIL CORP (MOBI)   NORTHROP P S,  TIMMER R S;  US5431224-A   MOBIL OIL CORP (MOBI)   LAALI H;  US5433271-A   SHELL OIL CO (SHEL)   BAXLEY P T,  BIELAMOWICZ L J,  VINEGAR H J,  DE ROUFFIGNAC E P;  US5437506-A   ENEL ENTE NAZ ENERGIA ELETTRICA (ENEL-Non-standard);  CISE SPA (CISE)   GRAY A;  US5439054-A   AMOCO CORP (STAD)   YEE D,  PURI R,  VOLZ R F,  CHABACK J J,  SEIDLE J P;  US5454666-A   AMOCO CORP (STAD)   CHABACK J J,  YEE D;  US5491969-A   ELECTRIC POWER RES INST INC (ELPO)   COHN A,  MINDERMAN D J;  US5497087-A   SHELL OIL CO (SHEL)   TUTUNJIAN P,  VINEGAR H J,  AKKURT R;  US5498960-A   SHELL OIL CO (SHEL)   TUTUNJIAN P N,  VINEGAR H J,  AKKURT R;  US5525322-A   UNIV CALIFORNIA (REGC)   WILLMS R S;  US5541517-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   HARTMANN R A,  MULDER E H;  US5553189-A   SHELL OIL CO (SHEL)   STEGEMEIER G L,  VINEGAR H J,  CARL F G;  US5554453-A   ENERGY RES CORP (ENER-Non-standard)   LEE A,  STEINFELD G,  MEYERS S J;  US5566756-A   AMOCO CORP (STAD)   CHABACK J J,  SEIDLE J P,  PURI R,  YEE D,  VOLZ R F;  US5621844-A   UENTECH CORP (UENT-Non-standard)   BRIDGES J E;  US5624188-A   WEST D A (WEST-Individual)   WEST D A;  US5632336-A   TEXACO INC (TEXC)   STEVENS J F,  PRIEDITIS J,  NOTZ P K;  US5656239-A   SHELL OIL CO (SHEL)   VINEGAR H J,  STEGEMEIER G L;  US5676212-A   VECTOR MAGNETICS INC (VECT-Non-standard)   KUCKES A F;  US5713415-A   UENTECH CORP (UENT-Non-standard)   BRIDGES J E;  US5767584-A   GROW INT CORP (GROW-Non-standard)   GORE R A,  GORE M D,  WITTMAN W K,  GORE G E,  ROMAN H T;  US5861137-A   EDLUND D J (EDLU-Individual)   EDLUND D J;  US5862858-A   SHELL OIL CO (SHEL)   KARANIKAS J M,  VINEGAR H J,  WELLINGTON S L,  MIKUS T;  US5899269-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   KARANIKAS J M,  MIKUS T,  VINEGAR H J,  WELLINGTON S L;  US5955039-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DOWDY T E;  US5968349-A   BHP MINERALS INT INC (BRHI)   DUYVESTEYN W P C,  PICAVET M A,  BUDDEN J R;  US5984010-A   ELIAS R (ELIA-Individual);  PRATS M (PRAT-Individual)   ELIAS R,  PRATS M;  US5985138-A   GEOPETROL EQUIP LTD (GEOP-Non-standard)   HUMPHREYS R D;  US5997214-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   DE ROUFFIGNAC E,  VINEGAR H J;  US6016867-A   WORLD ENERGY SYSTEMS INC (WORL-Non-standard)   GREGOLI A A,  RIMMER D P,  GRAUE D J;  US6016868-A   WORLD ENERGY SYSTEMS INC (WORL-Non-standard)   GREGOLI A A,  RIMMER D P;  US6019172-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   KARANIKAS J M,  MIKUS T,  VINEGAR H J,  WELLINGTON S L;  US6023554-A   SHELL OIL CO (SHEL)   VINEGAR H J,  DE ROUFFIGNAC E;  US6056057-A   SHELL OIL CO (SHEL)   MIKUS T,  KARANIKAS J M,  WELLINGTON S L,  VINEGAR H J;  US6079499-A   SHELL OIL CO (SHEL)   WELLINGTON S L,  KARANIKAS J M,  VINEGAR H J,  MIKUS T;  US6085512-A   SYNTROLEUM CORP (SYNT-Non-standard)   AGEE K L,  AGEE M A,  WEICK L J,  TREPPER E L;  US6094048-A   SHELL OIL CO (SHEL)   AKKURT R,  TUTUNJIAN P N,  VINEGAR H J;  US6102122-A   SHELL OIL CO (SHEL)   DE ROUFFIGNAC E;  US6102622-A   SHELL INT RES MIJ BV (SHEL);  SHELL CANADA LTD (SHEL)   DE ROUFFIGNAC E,  VINEGAR H J;  US6152987-A   WORCESTER POLYTECHNIC INST (WORC-Non-standard)   MA Y H,  MARDILOVICH P P,  SHE Y;  US6172124-B1   SYNTROLEUM CORP (SYNT-Non-standard)   WOLFLICK J R,  BEER G L,  PAYNE R L;  US6173775-B1   ELIAS R (ELIA-Individual);  PRATS M (PRAT-Individual)   ELIAS R,  PRATS M;  US6187465-B1   GALLOWAY T R (GALL-Individual)   GALLOWAY T R;  US6244338-B1   UNIV WYOMING RES CORP (UYWY-Non-standard)   MONES C G;  US6328104-B1   WORLD ENERGY SYSTEMS INC (WORL-Non-standard)   GRAUE D J;  US6354373-B1   SCHLUMBERGER TECHNOLOGY CORP (SLMB)   VERCAEMER C J,  THOMEER H V,  SOREM R M;  US6412559-B1   ALBERTA RES COUNCIL INC (ALBE-Non-standard)   GUNTER W D,  MAVOR M J,  LAW D H;  US6389814-B2   CLEAN ENERGY SYSTEMS INC (CLEA-Non-standard)   VITERI F,  TAYLOR J P,  BRANDT H,  ANDERSON R E;  US30019-E   CHEVRON RES CO (CALI)   LINDQUIST R H;  US30738-E   IIT RES INST (IITR)   BRIDGES J,  TAFLOVE A;  US35696-E   SHELL OIL CO (SHEL)   MIKUS T;  WO1995006093-A1   ;  WO1995012742-A1   ;  WO1995012743-A1   ;  WO1995012744-A1   ;  WO1995012745-A1   ;  WO1995012746-A1   ;  WO1995033122-A1   ;  WO1997001017-A1   ;  WO1999001640-A1   ;  WO2001051505-A1   ;  WO2001081723-A1