US2004161653-A1 -- US3126302-A   ;  US3617385-A   ;  US3650005-A   SHOWA ALUMINIUM CO LTD (SHOA);  US3717505-A   GULF OIL CORP (GULO);  US3846903-A   US SEC OF AIR FORCE (USAF);  US3937858-A   METALLGESELLSCHAFT AG (METG);  US4015950-A   ANVAR AGENCE NAT VALORISATION (ANVR);  US4115604-A   BREMAT SA (BREM-Non-standard);  US4135656-A   ALLOY METALS INC (ALLO-Non-standard)   STERN M J;  US4175165-A   ENGELHARD MINERALS CORP (ENGH)   ADLHART O J;  US4297421-A   ESB INC (ESBI);  INT NICKEL CO INC (INTN)   TURILLON P P,  HULL M N,  NORDBLUM G F;  US4516632-A   US DEPT ENERGY (USAT)   SWIFT G W,  MIGLIORI A,  WHEATLEY J C;  US4533455-A   ORONZIO DE NORA IMPIANTI ELETR (ORON)   BALKO E N,  MOULTHROP L C;  US4615107-A   SANYO ELECTRIC CO (SAOL);  KUMETA M (KUME-Individual)   KUMETA M,  IDE M,  NISHIZAWA N,  INOUE S,  GOTO H;  US4619753-A   BBC BROWN BOVERI & CIE AG (BROV)   CHRISTEN H J,  DEVANTAY H,  SCHELLENBE C,  SCHERER G,  STUCKI S;  US4780342-A   GENERAL ELECTRIC CO (GENE)   LEBLANC O H;  US4882202-A   TECHNO INSTRUM INVE (TECH-Non-standard)   HOLTZMANN A M,  RELIS J;  US4900643-A   GLOBE UNION INC (GLOB)   ESKRA M D,  DELANEY W C,  BOWEN G K;  US4943480-A   BROMINE COMPOUNDS LTD (INCM)   ITZHAK D;  US4973358-A   ALCAN INT LTD (ALCN)   JIN I,  KENNY L D,  SANG H;  US5058665-A   AISIN SEIKI KK (AISE)   HARADA S;  US5070607-A   ROLLS ROYCE PLC (RORO)   BOARDMAN J E,  FOWLER J O;  US5112703-A   BETA POWER INC (BETA-Non-standard)   KOENIG A;  US5200281-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LEAP G D,  MOYES H;  US5217751-A   MCGEAN ROHCO INC (MCGE-Non-standard)   KING R D,  VITALE A C,  DODD J R,  REINBOLD C W;  US5251375-A   PHILIPS GLOEILAMPENFAB NV (PHIG)   CRUCQ J,  DONA M J J,  WALRAVEN W M;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  US5264305-A   ENERGY RES CORP (ENER-Non-standard)   CHARKEY A;  US5348817-A   GNB BATTERY TECHNOLOGIES INC (GNBB)   CHERNG J,  RAO P;  US5482792-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5496655-A   LOCKHEED IDAHO TECHNOLOGIES CO (LOCK)   LESSING P A;  US5578388-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5589662-A   DIEHL GMBH & CO (DIEH);  HONDA GIKEN KOGYO KK (HOND)   SCHLEICHER U,  KLOEBER M,  SCHWARZ W,  FEUERSTAKE E;  US5641586-A   UNIV CALIFORNIA OFFICE TECHNOLOGY (REGC)   WILSON M S;  US5776624-A   GENERAL MOTORS CORP (GENK)   NEUTZLER J K;  US5798187-A   UNIV CALIFORNIA (REGC)   WILSON M S,  ZAWODZINSKI C;  US5800946-A   GROSVENOR V L (GROS-Individual);  PINSKY N (PINS-Individual)   GROSVENOR V L,  PINSKY N;  US5858569-A   PLUG POWER LLC (PLUG-Non-standard)   VITALE N G,  MEACHER J;  US5916505-A   LYNNTECH INC (LYNN-Non-standard)   MURPHY O J,  HITCHENS G D,  GONZALEZ-MARTIN A,  CISAR A J;  US5981098-A   PLUG POWER LLC (PLUG-Non-standard)   VITALE N G;  US5993494-A   GNB TECHNOLOGIES INC (GNBT-Non-standard)   MALIKAYIL L;  US6020083-A   INT FUEL CELLS LLC (ITFU)   BREAULT R D,  KRASIJ M;  US6022634-A   DE NORA SPA (ORON)   RAMUNNI E,  FLEBA G,  BRAMBILLA M;  US6054228-A   LYNNTECH INC (LYNN-Non-standard)   CISAR A J,  WENG D,  MURPHY O J;  US6071636-A   AUTOMOBILES PEUGEOT SA (CITR);  AUTOMOBILES CITROEN SA (CITR)   MOSDALE R;  US6099716-A   PROTON ENERGY SYSTEMS (PROT-Non-standard)   MOLTER T M,  MOULTHROP L C,  FRIEDLAND R J,  DRISTY M E;  US6146780-A   LYNNTECH INC (LYNN-Non-standard)   CISAR A J,  MURPHY O J;  US20030003343-A1   ;  US6171721-B1   CALIFORNIA INST OF TECHNOLOGY (CALY)   NARAYANAN S R,  JEFFRIES-NAKAMURA B,  CHUN W,  RUIZ R P,  VALDEZ T I;  US6190793-B1   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H,  GIBB P R,  RONNE J A,  VOSS H H;  US6220497-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   WAITKAT P,  KLEINEKATHOEFER W,  BENZ U,  HAUG L;  US6231053-B1   NOK CORP (NIOD);  US6638657-B1   LYNNTECH INC (LYNN-Non-standard)   CISAR A J,  MURPHY O J;  US6986961-B1   UNIV CALIFORNIA (REGC)   REN X,  GOTTESFELD S;  US7736783-B2 -- EP629015-A1   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  EP784352-A1   NISSHINBO IND INC (NISN)   SAITO K,  HAGIWARA A,  TANNO F;  EP817297-A2   DE NORA SPA (ORON)   RAMUNNI E,  FLEBA G,  BRAMBILLA M;  EP1009051-A2   GENERAL MOTORS CORP (GENK)   FUSS R L;  EP1089369-A2   CALSONIC KANSEI CORP (NIRD)   MATSUZAKI T,  SASAKI Y,  YOSHIDA C;  GB2326017-A   MOTOROLA INC (MOTI)   DAVIS J L;  JP05029001-A   ;  US3126302-A   ;  US3617385-A   ;  US3650005-A   SHOWA ALUMINIUM CO LTD (SHOA);  US3717505-A   GULF OIL CORP (GULO);  US3846903-A   US SEC OF AIR FORCE (USAF);  US3937858-A   METALLGESELLSCHAFT AG (METG);  US4015950-A   ANVAR AGENCE NAT VALORISATION (ANVR);  US4115604-A   BREMAT SA (BREM-Non-standard);  US4135656-A   ALLOY METALS INC (ALLO-Non-standard)   STERN M J;  US4175165-A   ENGELHARD MINERALS CORP (ENGH)   ADLHART O J;  US4297421-A   ESB INC (ESBI);  INT NICKEL CO INC (INTN)   TURILLON P P,  HULL M N,  NORDBLUM G F;  US4516632-A   US DEPT ENERGY (USAT)   SWIFT G W,  MIGLIORI A,  WHEATLEY J C;  US4533455-A   ORONZIO DE NORA IMPIANTI ELETR (ORON)   BALKO E N,  MOULTHROP L C;  US4615107-A   SANYO ELECTRIC CO (SAOL);  KUMETA M (KUME-Individual)   KUMETA M,  IDE M,  NISHIZAWA N,  INOUE S,  GOTO H;  US4619753-A   BBC BROWN BOVERI & CIE AG (BROV)   CHRISTEN H J,  DEVANTAY H,  SCHELLENBE C,  SCHERER G,  STUCKI S;  US4780342-A   GENERAL ELECTRIC CO (GENE)   LEBLANC O H;  US4882202-A   TECHNO INSTRUM INVE (TECH-Non-standard)   HOLTZMANN A M,  RELIS J;  US4900643-A   GLOBE UNION INC (GLOB)   ESKRA M D,  DELANEY W C,  BOWEN G K;  US4943480-A   BROMINE COMPOUNDS LTD (INCM)   ITZHAK D;  US4973358-A   ALCAN INT LTD (ALCN)   JIN I,  KENNY L D,  SANG H;  US5058665-A   AISIN SEIKI KK (AISE)   HARADA S;  US5070607-A   ROLLS ROYCE PLC (RORO)   BOARDMAN J E,  FOWLER J O;  US5112703-A   BETA POWER INC (BETA-Non-standard)   KOENIG A;  US5200281-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LEAP G D,  MOYES H;  US5217751-A   MCGEAN ROHCO INC (MCGE-Non-standard)   KING R D,  VITALE A C,  DODD J R,  REINBOLD C W;  US5251374-A   HALSTEAD G A (HALS-Individual);  CONN P J (CONN-Individual);  DAY MFG CO INC SA (DAYD-Non-standard)   HALSTEAD G A,  CONN P J;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  US5264305-A   ENERGY RES CORP (ENER-Non-standard)   CHARKEY A;  US5348817-A   GNB BATTERY TECHNOLOGIES INC (GNBB)   CHERNG J,  RAO P;  US5482792-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5496655-A   LOCKHEED IDAHO TECHNOLOGIES CO (LOCK)   LESSING P A;  US5578388-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5589662-A   DIEHL GMBH & CO (DIEH);  HONDA GIKEN KOGYO KK (HOND)   SCHLEICHER U,  KLOEBER M,  SCHWARZ W,  FEUERSTAKE E;  US5641586-A   UNIV CALIFORNIA OFFICE TECHNOLOGY (REGC)   WILSON M S;  US5776624-A   GENERAL MOTORS CORP (GENK)   NEUTZLER J K;  US5798187-A   UNIV CALIFORNIA (REGC)   WILSON M S,  ZAWODZINSKI C;  US5800946-A   GROSVENOR V L (GROS-Individual);  PINSKY N (PINS-Individual)   GROSVENOR V L,  PINSKY N;  US5858569-A   PLUG POWER LLC (PLUG-Non-standard)   VITALE N G,  MEACHER J;  US5916505-A   LYNNTECH INC (LYNN-Non-standard)   MURPHY O J,  HITCHENS G D,  GONZALEZ-MARTIN A,  CISAR A J;  US5981098-A   PLUG POWER LLC (PLUG-Non-standard)   VITALE N G;  US5993494-A   GNB TECHNOLOGIES INC (GNBT-Non-standard)   MALIKAYIL L;  US6020083-A   INT FUEL CELLS LLC (ITFU)   BREAULT R D,  KRASIJ M;  US6022634-A   DE NORA SPA (ORON)   RAMUNNI E,  FLEBA G,  BRAMBILLA M;  US6054228-A   LYNNTECH INC (LYNN-Non-standard)   CISAR A J,  WENG D,  MURPHY O J;  US6071636-A   AUTOMOBILES PEUGEOT SA (CITR);  AUTOMOBILES CITROEN SA (CITR)   MOSDALE R;  US6099716-A   PROTON ENERGY SYSTEMS (PROT-Non-standard)   MOLTER T M,  MOULTHROP L C,  FRIEDLAND R J,  DRISTY M E;  US6146780-A   LYNNTECH INC (LYNN-Non-standard)   CISAR A J,  MURPHY O J;  US20030003343-A1   ;  US6171721-B1   CALIFORNIA INST OF TECHNOLOGY (CALY)   NARAYANAN S R,  JEFFRIES-NAKAMURA B,  CHUN W,  RUIZ R P,  VALDEZ T I;  US6190793-B1   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H,  GIBB P R,  RONNE J A,  VOSS H H;  US6220497-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   WAITKAT P,  KLEINEKATHOEFER W,  BENZ U,  HAUG L;  US6231053-B1   NOK CORP (NIOD);  US6638657-B1   LYNNTECH INC (LYNN-Non-standard)   CISAR A J,  MURPHY O J;  US6986961-B1   UNIV CALIFORNIA (REGC)   REN X,  GOTTESFELD S;  WO1988006941-A   ;  WO1998037457-A1   ;  WO1998033221-A2   ;  WO2001015257-A2