;  WO200293673-A1 -- JP07006777-A   ;  JP09022709-A   ;  JP60254568-A   ;  JP61233978-A   FUJI ELECTRIC MFG CO LTD (FJIE)   IZUMIKAWA N,  SUGIYAMA T,  OUCHI T;  WO2000054354-A1   ;  WO2002067346-A2   ;  US6649290-B2 -- JP07006777-A   ;  JP60254568-A   ;  JP61233978-A   FUJI ELECTRIC MFG CO LTD (FJIE)   IZUMIKAWA N,  SUGIYAMA T,  OUCHI T;  JP90222709-A   ;  US4578324-A   FORD AEROSPACE & COMMUNIC CORP (FORD)   KOEHLER C W,  OMMERING G,  PUESTER N H;  US4670702-A   SANYO ELECTRIC CO (SAOL)   YAMADA M,  TSUKAMOTO K;  US4706737-A   INT FUEL CELLS CORP (ITFU)   TAYLOR W A,  ABRAMS M L;  US4839246-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAKABAYASHI Y;  US4839574-A   FUJI ELECTRIC MFG CO LTD (FJIE)   TAKABAYASHI Y;  US4883724-A   FUJI ELECT CO LTD (FJIE)   YAMAMOTO O;  US4931947-A   ENGELHARD CORP (ENGH)   EARLY J,  FEKETE I,  WERTH J;  US4961151-A   ENGELHARD CORP (ENGH)   EARLY J,  FEKETE I,  WERTH J;  US4962462-A   ENGELHARD CORP (ENGH)   EARLY J,  FEKETE I,  WERTH J;  US5075813-A   FUJI ELECTRIC CORP RES & DEV (FUEL);  FUJI ELECTRIC CO LTD (FJIE)   TAKABAYASHI Y;  US5139894-A   YAMAHA HATSUDOKI KK (YMHA)   MIZUNO Y,  HANASHIMA T,  MATSUBARA H;  US5141826-A   LICENTIA PATENT-VERW GMBH (LICN);  AABH PATENT HOLDINGS SA (AABH-Non-standard)   BOHM H,  BEVERMANN G,  BULLING M;  US5332630-A   HSU M S (HSUM-Individual)   HSU M S;  US5334463-A   SANYO ELECTRIC CO LTD (SAOL)   YAMAMOTO S,  YONEDA F,  SHINDO K,  TAJIMA O,  SUMI S;  US5458095-A   ENERGY REDUCTIONS SYSTEMS INC (ENER-Non-standard)   LITTLEFIELD D C,  POST D R;  US5470671-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  LAMONT G J,  BASURA V,  VOSS H H,  WILKINSON D P;  US5601936-A   BRITISH GAS PLC (GASC)   DUDFIELD C D,  DICKS A L;  US5623194-A   MERCEDES-BENZ AG (DAIM)   BOLL W,  KNOERZER G,  MIKULIC L;  US5631532-A   EQUOS RES KK (EQUS);  AISIN AW CO LTD (AISW)   AZUMA R,  HARA T,  KATO K;  US5645952-A   LAMPINEN M (LAMP-Individual)   LAMPINEN M,  VIITANEN M,  LAMMINEN J,  FOMINO M;  US5710699-A   GENERAL ELECTRIC CO (GENE)   KING R D,  DEDONCKER R W A A;  US5714874-A   IMRA EURO SA (IMRA-Non-standard)   BONNEFOY P;  US5760488-A   DAIMLER-BENZ AG (DAIM)   SONNTAG J;  US5773160-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  VOSS H H,  JOHNSON M C,  POW E G,  WILKINSON D P;  US5780980-A   HITACHI LTD (HITA)   NAITO S;  US5820172-A   FORD GLOBAL TECHNOLOGIES INC (FORD)   TAMOR M A,  GIARDINI S,  BRIGHAM D R,  LEV A,  ROMLEIN T;  US5929595-A   LOCKHEED MARTIN CORP (LOCK)   LYONS A P,  GREWE T M;  US5945808-A   NISSAN MOTOR CO LTD (NSMO)   KIKUCHI T,  KITADA S,  HIRANO H,  INADA E,  ASO T,  IDOGUCHI R,  KANEKO Y;  US5980726-A   PROTON ENERGY SYSTEMS (PROT-Non-standard)   MOULTHROP L C,  BYRON R H,  SPERANZA A J;  US5991670-A   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   STRASKY D G,  MUFFORD W E;  US6011379-A   US NANOCORP (USNA-Non-standard)   SINGH P,  FENNIE C;  US6080502-A   SIEMENS AG (SIEI)   NOELSCHER C,  MATTEJAT A;  US6214484-B1   VOLKSWAGEN AG (VOLS)   HAUER K;  US6355368-B1   PLUG POWER INC (PLUG-Non-standard)   KRALICK J H;  US6368737-B1   INT FUEL CELLS LLC (ITFU)   MARGIOTT P R,  MASTON V A,  SCHEFFLER G W;  US6551734-B1   DELPHI TECHNOLOGIES INC (DELP)   SIMPKINS H,  THOMAS S M,  LABARGE W J;  US6344289-B2   STICHTING ENERGIEONDERZOEK CENT NED (SECN);  BRITISH GAS PLC (GASC)   DEKKER N J J,  FELLOWS R G;  US6534950-B2   CELLEX POWER PROD INC (CELL-Non-standard)   LEBOE D;  US6559621-B2   CELLEX POWER PROD INC (CELL-Non-standard)   ADRIAN C J,  LEBOE D;  US6572995-B2   YANG D (YANG-Individual);  KING C J (KING-Individual)   YANG D,  KING C J;  WO2000054354-A1   ;  WO2002067346-A2