US2002094469-A1 -- US2850038-A   ;  US5059494-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G,  LANDAU M B;  US5917161-A   GILLET GMBH & CO KG HEINRICH (GILL-Non-standard)   FUHRMANN B;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6124054-A   INT FUEL CELLS LLC (ITFU)   GORMAN M E,  MURACH B L;  US20030037983-A1   ;  US20030077488-A1   ;  US20030091879-A1   ;  US6378637-B1   HONDA GIKEN KOGYO KK (HOND)   ONO T,  IGARASHI N,  USHIO T,  KAMI Y,  GOUHARA K;  US6395414-B1   GENERAL MOTORS CORP (GENK)   CLINGERMAN B J,  DOAN T M,  KESKULA D H;  US6455181-B1   PLUG POWER INC (PLUG-Non-standard)   HALLUM R P;  US6521204-B1   GENERAL MOTORS CORP (GENK)   BORUP R L,  PETTIT W H;  US6696188-B1   XCELLSIS GMBH (XCEL-Non-standard)   BONEBERG S,  MOTZET B,  TISCHLER A,  WEISSER M;  US6815106-B1   GENERAL MOTORS CORP (GENK)   SALVADOR J P,  DANDALIDES J W,  PETTIT W H;  US6630260-B2   FORTE J R (FORT-Individual);  BURCH S (BURC-Individual);  BRUNDAGE M A (BRUN-Individual)   FORTE J R,  BURCH S,  BRUNDAGE M A;  DE10201668-B4 -- DE19903168-A1   XCELLSIS GMBH (XCEL-Non-standard)   BONEBERG S,  MOTZET B,  TISCHLER A,  WEISSER M;  DE19620501-C1   MTU FRIEDRICHSHAFEN GMBH (MOTU)   HOFFMANN J;  DE4219113-C2   ;  DE69302902-T2   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  WO2000063993-A1   ;  DE10262172-B4 -- DE10065459-B4   GENERAL MOTORS CORP (GENK)   CLINGERMAN B J,  DOAN T M,  KESKULA D H;  JP4470346-B2 -- JP08138697-A   ;  JP10189010-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   TAKEI N,  TAKABE S;  JP2001021111-A   ;  US7968242-B2 -- CA2274240-A1   QUESTOR IND INC (QUES-Non-standard)   KEEFER B G,  MCLEAN C,  BROWN M J;  DE3537527-A   VICKERS SHIPBUILDING & ENG (VICS)   WRIGHT B J,  SEYMOUR C M,  ADAMS V W,  CATCHPOLE J P;  DE4219113-A1   ;  DE19903168-A1   XCELLSIS GMBH (XCEL-Non-standard)   BONEBERG S,  MOTZET B,  TISCHLER A,  WEISSER M;  DE10065459-B4   GENERAL MOTORS CORP (GENK)   CLINGERMAN B J,  DOAN T M,  KESKULA D H;  DE19620501-C1   MTU FRIEDRICHSHAFEN GMBH (MOTU)   HOFFMANN J;  DE69302902-E   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  GB2242563-A   VICKERS SHIPBUILDING & ENG (VICS)   WRIGHT B J,  SEYMOUR C M,  ADAMS V M,  CATCHPOLE J P;  JP04013411-A   ;  JP05125936-A   ;  JP08138697-A   ;  JP10189010-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   TAKEI N,  TAKABE S;  JP11185783-A   ;  JP11233129-A   MITSUBISHI JUKOGYO KK (MITO)   NAGAYASU H,  MIYAMOTO H,  IKEMOTO Y;  JP2001021111-A   ;  JP2001113960-A   HONDA GIKEN KOGYO KK (HOND)   ONO T,  IGARASHI N,  USHIO T,  KAMI Y,  GOUHARA K;  JP2004136828-A   ;  JP2004341795-A   TOYOTA JIDOSHA KK (TOYT)   MIYAZAWA N;  JP2006313664-A   NISSAN MOTOR CO LTD (NSMO)   IKEZOE K,  YOSHIZAWA K,  TAZAKI Y,  ZHANG J B;  US2850038-A   ;  US5059494-A   INT FUEL CELLS CORP (ITFU)   VARTANIAN G,  LANDAU M B;  US5917161-A   GILLET GMBH & CO KG HEINRICH (GILL-Non-standard)   FUHRMANN B;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6124054-A   INT FUEL CELLS LLC (ITFU)   GORMAN M E,  MURACH B L;  US20020094468-A1   ;  US20030037983-A1   ;  US20030077488-A1   ;  US20030091879-A1   ;  US20080063906-A1   ;  US6378637-B1   HONDA GIKEN KOGYO KK (HOND)   ONO T,  IGARASHI N,  USHIO T,  KAMI Y,  GOUHARA K;  US6395414-B1   GENERAL MOTORS CORP (GENK)   CLINGERMAN B J,  DOAN T M,  KESKULA D H;  US6455181-B1   PLUG POWER INC (PLUG-Non-standard)   HALLUM R P;  US6521204-B1   GENERAL MOTORS CORP (GENK)   BORUP R L,  PETTIT W H;  US6696188-B1   XCELLSIS GMBH (XCEL-Non-standard)   BONEBERG S,  MOTZET B,  TISCHLER A,  WEISSER M;  US6815106-B1   GENERAL MOTORS CORP (GENK)   SALVADOR J P,  DANDALIDES J W,  PETTIT W H;  US6630260-B2   FORTE J R (FORT-Individual);  BURCH S (BURC-Individual);  BRUNDAGE M A (BRUN-Individual)   FORTE J R,  BURCH S,  BRUNDAGE M A;  WO2000045456-A1   ;  WO2000063993-A1   ;  WO2001097310-A2