US6911274-B1 -- EP568822-A2   OSAKA GAS CO LTD (OSAG)   ISHIMARU K,  NAKASHIBA A,  KOGA M,  OHNISHI H,  KAWAHARA H;  EP755088-A2   RAILWAY TECHNICAL RES INST (JAPN)   OKI Y,  HASEGAWA H,  ITO T;  FR2639767-A   SORAPEC SOC RECH EL (SORA-Non-standard)   BRONEOL G,  TASSIN N;  FR2669775-A1   SORA SOC RECH & APPL ELECTROCHIMIQUES (SORA-Non-standard)   BRONOEL G,  MILLOT A,  TASSIN N;  JP51494439   ;  US3440098-A   ;  US3451851-A   ;  US3639173-A   YARDNEY INT CORP (YARN);  US3660170-A   GENERAL ELECTRIC CO (GENE);  US3663298-A   NORTH AMERICAN ROCKWELL (ROCW);  US3716413-A   ;  US3767466-A   NORTH AMERICAN ROCKWELL (ROCW);  US3811952-A   AB ST POWERCELL (STPO-Non-standard);  US3847671-A   ELECTROMEDIA INC (ELEC-Non-standard);  US3879225-A   NAT RES DEV CORP (NATR);  US3902918-A   CIE GEN ELECTRICITE SA (COGE);  US3930882-A   FURUKAWA ELECTRIC CO LTD (FURU);  US3944430-A   UNION CARBIDE CORP (UNIC);  US3970472-A   MCGRAW EDISON CO (MCGR)   STEFFENSEN J;  US3981747-A   BATTELLE MEMORIAL INST (BATT);  AUTOMOBILES CITROEN SA (CITR);  US3985581-A   YARDNEY ELECTRIC CORP (YARN)   STACHURSKI Z,  YARDNEY M N;  US4074028-A   GENERAL ELECTRIC CO (GENE)   WILL F G;  US4105829-A   EXXON RES & ENG CO (ESSO);  US4127701-A   ENERGY DEV ASSOC INC (ENER-Non-standard)   SYMONS P C,  AMATO C J;  US4145482-A   DEUT AUTOMOBILGES MBH (DEAU);  US4147839-A   DIAMOND SHAMROCK CORP (DIAS)   SOLOMON F,  GRUN C;  US4172924-A   ALSTHOM SOC GEN CONSTR ELEC (ALST);  US4198475-A   REYNOLDS METALS CO (REYN)   ZAROMB S;  US4218521-A   ELECTRIC POWER RES INST INC (ELPO)   PUTT R A,  MONTGOMERY M J;  US4272333-A   NAT RES DEV CORP (NATR);  SCOTT K (SCOT-Individual);  US4287273-A   CATALYST RES CORP (CATL)   HARNEY D E,  HARNEY M J,  OBOYLE M,  O'BOYLE M;  US4352864-A   UNIVERSAL FUEL SYS (UVFU-Non-standard)   STRUTHERS R C;  US4362789-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DIGHE S V;  US4415636-A   ENERGY RES CORP (ENER-Non-standard)   CHARKEY A;  US4479856-A   MEIDENSHA ELEC MFG CO LTD (MEID)   ANDO Y;  US4485154-A   INST GAS TECHNOLOGY (IGTE)   REMICK R J;  US4563403-A   JULIAN J D H (JULI-Individual);  JOH J (JOHJ-Individual)   JULIAN J D H;  US4730153-A   SEREGIE (SERE-Non-standard)   BRETING O,  BUGNET B,  BRONOEL G;  US4731547-A   CATERPILLAR TRACTOR CO (CATE)   ALENDUFF P D,  PORTER G J,  CRUMP A;  US4802100-A   GAS RES INST (GASR-Non-standard)   AASEN R K,  TURCK D C,  MATHUR A K;  US4828939-A   ELTECH SYSTEMS CORP (ELTE)   TURLEY H L,  NIKSA M J,  POHTO G R,  NIKSA A J;  US4842963-A   US DEPT ENERGY (USAT);  UNIV CALIFORNIA (REGC)   ROSS P N;  US4855030-A   US DEPT ENERGY (USAT);  UNIV CHICAGO (UYCG)   MILLER W E;  US4950561-A   ELTECH SYSTEMS CORP (ELTE)   NIKSA A J,  NIKASA M J,  NOSCAL J M,  SOVICH T J;  US5006424-A   UNIV CALIFORNIA (REGC)   EVANS J W,  SAVASKAN G;  US5156925-A   ALCAN INT LTD (ALCN)   LAPP S P;  US5188911-A   MAGNAVOX ELECTRONIC SYSTEMS CO (MAGX)   DOWNING R W,  CONTE D V;  US5196275-A   ELECTRIC FUEL LTD (ELFU-Non-standard)   GOLDMAN A J,  PECHERER E,  GOLDSTEIN J,  MEITAV A;  US5208526-A   LUZ ELECTRIC FUEL ISRAEL LTD (LUZE-Non-standard)   GOLDMAN A J,  GOLDSTEIN J,  KORALL M J;  US5260144-A   ALCAN INT LTD (ALCN)   OCALLAGHAN W B;  US5312699-A   KANSAI ELECTRIC POWER CO (KANT);  MITSUBISHI JUKOGYO KK (MITO)   YANAGI C,  KIKUOKA Y,  KUGIMIYA K,  YOSHINO M,  TOKURA M,  UEDA S;  US5316869-A   ENERGY PARTNERS INC (ENER-Non-standard)   MISIASZEK S M,  ALESSI D P,  PERRY J H,  PERSON A;  US5318861-A   EFL ELECTRIC FUEL LTD (EFLE-Non-standard)   HARATS Y,  GOLDSTEIN J;  US5346778-A   ENERGY PARTNERS INC (ENER-Non-standard)   EWAN J M,  MISIASZEK S M,  ALESSI D P;  US5348820-A   NIPPON OIL KK (NIOC)   SUGA M,  KURODA N,  AKITA S;  US5360680-A   EFL ELECTRIC FUEL LTD (EFLE-Non-standard)   GOLDMAN A J,  PECHERER E,  GOLDSTEIN J R,  MEITAV A,  BIRAN J,  KORALL M;  US5366829-A   VALENCE TECHNOLOGY INC (VALE-Non-standard)   SAIDI E S;  US5369353-A   KENETECH WINDPOWER INC (KENE-Non-standard)   ERDMAN W L;  US5378329-A   EFL ELECTRIC FUEL LTD (EFLE-Non-standard)   GIVON M,  GEKTIN I,  GOLDSTEIN J R;  US5382482-A   NIPPON OIL KK (NIOC)   SUGA M,  AKITA S,  KURODA N;  US5401589-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  US5405713-A   EFL ELECTRIC FUEL LTD (EFLE-Non-standard)   PECHERER E,  GOLDSTEIN J R;  US5411815-A   EFL ELECTRIC FUEL LTD (EFLE-Non-standard)   GOLDSTEIN J R;  US5427872-A   NASA US NAT AERO & SPACE ADMIN (USAS)   SHEN D H,  SURAMPUDI S,  HUANG C,  HALPERT G;  US5432710-A   OSAKA GAS CO LTD (OSAG)   ISHIMARU K,  NAKASHIBA A,  KOGA M,  OHNISHI H,  KAWAHARA H;  US5434020-A   UNIV CALIFORNIA (REGC)   COOPER J F;  US5434021-A   LITTLE INC ARTHUR D (LITT)   RONA M,  SHI J,  FAUTEUX D G,  VAN BUREN M;  US5441820-A   UNIV CALIFORNIA (REGC)   SALAS-MORALES J,  SIU S C,  EVANS J W;  US5462815-A   FUJI ELECTRIC CO LTD (FJIE)   HORIUCHI Y;  US5476293-A   YANG T (YANG-Individual);  US5500561-A   WILHELM W G (WILH-Individual)   WILHELM W G;  US5547778-A   LITTLE INC ARTHUR D (LITT)   SHI J,  FAUTEUX D G,  VAN BUREN M;  US5558947-A   ROBISON G D (ROBI-Individual)   ROBISON G D;  US5563802-A   ONAN CORP (ONAN-Non-standard)   PLAHN P H,  KOENIG D J,  MILLER M C;  US5569551-A   AER ENERGY RESOURCES INC (AERE-Non-standard)   TINKER L A,  TURNER C A,  PEDICINI C S,  THIBAULT W C;  US5578183-A   UNIV CALIFORNIA (REGC)   COOPER J F;  US5635051-A   UNIV CALIFORNIA (REGC);  PASMINCO AUSTRALIA LTD (PASM-Non-standard)   SALAS-MORALES J C,  SIU S C,  EVANS J W,  NEWMAN O M G;  US5637414-A   FUJI ELECTRIC CO LTD (FJIE)   INOUE S,  NAGAI T,  KOMATSU T,  WAKATSUKI S,  MOGI H;  US5780186-A   NASA US NAT AERO & SPACE ADMIN (USAS)   CASEY J E;  US5783932-A   HITACHI LTD (HITA)   NAMBA S,  UDA K;  US5795666-A   JOHNSSEN W (JOHN-Individual)   JOHNSSEN W;  US5795679-A   CANON KK (CANO)   KAWAKAMI S,  KOBAYASHI N,  MISHINA S,  ASAO M;  US5824434-A   CANON KK (CANO)   KAWAKAMI S,  MISHINA S,  KOBAYASHI N;  US5849427-A   BERKELEY LAB LAWRENCE (BERK-Non-standard)   EVANS J W,  SIU S C;  US5869200-A   SUNSAVE INC (SUNS-Non-standard)   NUNNALLY W C;  US5880536-A   IO LP LLP (IOLL-Non-standard)   MARDIROSSIAN A;  US5885727-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S;  US5929538-A   ABACUS CONTROLS INC (ABAC-Non-standard)   O'SULLIVAN G A,  O'SULLIVAN J A;  US5952117-A   METALLIC POWER INC (META-Non-standard)   COLBORN J A,  WRIGHT K A,  GULINO R;  US5958210-A   UNIV CALIFORNIA (REGC)   SIU S C,  EVANS J W;  US5961928-A   INT FUEL CELLS CORP (ITFU)   MASTON V A,  VANDINE L L,  SEDERQUIST R A,  SMITH R M,  GRUBB P A,  MALINOWSKI T S;  US5969435-A   NEXTEK POWER SYSTEMS INC (NEXT-Non-standard)   WILHELM W G;  US5984986-A   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  US5985474-A   PLUG POWER LLC (PLUG-Non-standard)   CHEN J S,  HUANG W,  ACKER W P;  US5999888-A   ALTERNATE ENERGY CORP (ALTE-Non-standard)   AUBEE T A;  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;  US6067482-A   HUSSMANN CORP (HUSS-Non-standard)   SHAPIRO D;  US6153329-A   DELPHI TECHNOLOGIES INC (DELP)   RASCHILLA A,  OKRUCKY J;  US6162555-A   METALLIC POWER INC (META-Non-standard)   GUTIERREZ B A,  SMEDLEY S I,  SMEDLEY K I,  COLBORN J A;  US20010049039-A1   ;  US20030035984-A1   ;  US6186254-B1   BALLARD POWER SYSTEMS INC (BLRD)   MUFFORD E W,  STRASKY D G,  GORBELL B N;  US6230496-B1   LOCKHEED MARTIN CONTROL SYSTEMS (LOCK)   HOFMANN L G,  PETERSON W A,  RODEN G G;  US6242873-B1   AZURE DYNAMICS INC (AZUR-Non-standard)   DROZDZ P,  ZETTEL A;  US6296958-B1   METALLIC POWER INC (META-Non-standard)   PINTO M,  SMEDLEY S,  COLBORN J A;  US6321145-B1   DELPHI TECHNOLOGIES INC (DELP)   RAJASHEKARA K;  US6326763-B1   GENERAL ELECTRIC CO (GENE)   KING R D,  SINHA G;  WO2000038260-A1