;  WO2003002244-A1 -- EP1065741-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   IIJIMA M,  KOBAYASHI K;  US3338681-A   ;  US5344721-A   TOSHIBA KK (TOKE)   MUNEUCHI A,  MURATA K;  US6221117-B1   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  US6375906-B1   IDATECH LLC (BLRD)   EDLUND D J,  HERRON T G;  WO1999065097-A1   ;  EP1412073-A1 -- WO2001008247-A1   ;  WO2001012311-A1   ;  WO2001012539-A1   ;  US6890672-B2 -- EP1065741-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   IIJIMA M,  KOBAYASHI K;  US3338681-A   ;  US3469944-A   ;  US3920416-A   NAT AERO & SPACE ADMIN (USAS);  US ENERGY R & D ADMIN (USAT);  US3955941-A   CALIF INST TECH (CALT-Non-standard)   HOUSEMAN J,  RUPE J H,  KUSHIDA R O;  US3982910-A   NAT AERO & SPACE ADMIN (USAS);  US4003343-A   PHILLIPS PETROLEUM CO (PHIP)   LEE R C;  US4098959-A   UNITED TECHNOLOGIES CORP (UNAC)   FANCIULLO S;  US4098960-A   UNITED TECHNOLOGIES CORP (UNAC)   GAGNON R N;  US4127393-A   BRITISH GAS CORP (GASC)   TIMMINS C,  CONWAY H L,  STROUD H J F;  US4134739-A   SIEMENS AG (SIEI);  US4238403-A   IMPERIAL CHEM IND LTD (ICIL);  US4302177-A   KELLOGG CO M W (PULL)   FRANKHANEL M O,  ROOSOV A K;  US4349613-A   VARTA BATTERIE AG (VART);  WINSEL A (WINS-Individual)   WINSEL A;  US4381641-A   GULF RES & DEV CO (GULF)   MADGAVKAR A M,  SWIFT H E;  US4387434-A   PROCESS TECHN INC (PROC-Non-standard)   MONCRIEF M L,  GLASS F S,  HERMANDEZ R,  CHOW E E,  HERNANDEZ R;  US4400182-A   BRITISH GAS CORP (GASC)   DAVIES H S,  GARSTANG J H,  TIMMINS C;  US4444158-A   CONOCO INC (CONO)   YOON H;  US4466253-A   GENERAL ELECTRIC CO (GENE)   JASTER H;  US4473622-A   GENERAL ELECTRIC CO (GENE);  CHLUDZINSKI P J (CHLU-Individual);  UNITED TECHNOLOGIES CORP (UNAC)   CHLUDZINSK P J,  DANTOWITZ P,  MCELROY J F;  US4533607-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4567857-A   NAT AERO & SPACE ADMIN (USAS)   HOUSEMAN J,  VOECKS G E;  US4642273-A   MITSUBISHI ELECTRIC CORP (MITQ)   SASAKI A;  US4657828-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAJIMA H;  US4659634-A   STRUTHERS R C (STRU-Individual)   STRUTHERS R C;  US4666457-A   PETROFERM USA INC (PETR-Non-standard)   HAYES M E,  DEAL J F,  BOLDEN P L,  HRENENAR K R;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US4788004-A   IMPERIAL CHEM IND PLC (ICIL)   PINTO A,  DAVIDSON P J,  LIMBACH A P J;  US4838897-A   HITACHI LTD (HITA)   AMANO Y,  YOKOYAMA E,  OOYACHI H;  US4880040-A   PIERSON R (PIER-Individual)   PIERSON R,  WHITELEY W;  US5344721-A   TOSHIBA KK (TOKE)   MUNEUCHI A,  MURATA K;  US5458857-A   ROLLS ROYCE & ASSOC LTD (RORO)   COLLINS R D,  OAKLEY M J;  US5616430-A   TOYOTA JIDOSHA KK (TOYT)   AOYAMA S;  US5637414-A   FUJI ELECTRIC CO LTD (FJIE)   INOUE S,  NAGAI T,  KOMATSU T,  WAKATSUKI S,  MOGI H;  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;  US5658681-A   AISIN AW CO LTD (AISW);  EQUOS RES KK (EQUS)   SATO M,  SHIRAISHI K;  US5677073-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S;  US5714276-A   HONDA MOTOR CO LTD (HOND)   OKAMOTO T;  US5780179-A   HONDA MOTOR CO LTD (HOND);  US5798186-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  US5833723-A   AISIN SEIKI KK (AISE)   KUWABARA Y,  OTA H,  MATSUOKA A,  HAYASHI T,  WATANABE N;  US5861137-A   EDLUND D J (EDLU-Individual)   EDLUND D J;  US5997594-A   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  US6042956-A   SULZER HEXIS AG (SULZ)   LENEL D;  US6045772-A   INT FUEL CELLS LLC (ITFU)   SZYDLOWSKI D F,  SEDERQUIST R A;  US6045933-A   HONDA MOTOR CO LTD (HOND)   OKAMOTO T;  US6103411-A   SANYO ELECTRIC CO LTD (SAOL)   MATSUBAYASHI T,  ODA K,  MIYAKE Y;  US6165633-A   TOYOTA JIDOSHA KK (TOYT)   NEGISHI Y;  US20020119353-A1   ;  US6171574-B1   JUDA ASSOC INC WALTER (JUDA-Non-standard)   JUDA W,  KRUEGER C W;  US6190623-B1   UOP LLC (UNVO)   SANGER R J,  SENETAR J J,  VANDEN BUSSCHE K,  TOWLER G P,  DOSHI K J;  US6221117-B1   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  US6375906-B1   IDATECH LLC (BLRD)   EDLUND D J,  HERRON T G;  WO1999065097-A1