US2004157100-A1 -- US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5686199-A   ALLIED-SIGNAL INC (ALLC)   WALSWORTH E,  CAVALCA C,  HOMEYER S T;  US6066408-A   PLUG POWER INC (PLUG-Non-standard)   VITALE N G,  JONES D O;  US20020081477-A1   ;  US20020122970-A1   ;  US20020168562-A1   ;  US6261710-B1   INST GAS TECHNOLOGY (IGTE)   MARIANOWSKI L G;  US6372373-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   GYOTEN H,  HATOH K,  NISHIDA K,  OHARA H,  YASUMOTO E,  KANBARA T,  UCHIDA M,  SUGAWARA Y,  MATSUMOTO T,  NAKAGAWA K;  US7195837-B2   HONDA GIKEN KOGYO KK (HOND)   SUZUKI M,  ENJOJI N,  KOSAKA Y,  SUGITA N;  JP3972832-B2 -- JP2000113897-A   TOYOTA JIDOSHA KK (TOYT)   IKUSHIMA K,  SHIMODA K,  FUNATSU J;  JP2002151111-A   ;  US7378167-B2 -- US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5686199-A   ALLIED-SIGNAL INC (ALLC)   WALSWORTH E,  CAVALCA C,  HOMEYER S T;  US20020168562-A1   ;  US7195837-B2   HONDA GIKEN KOGYO KK (HOND)   SUZUKI M,  ENJOJI N,  KOSAKA Y,  SUGITA N;  DE10248531-A1   REINZ DICHTUNGS GMBH & CO KG (REIZ);  JP2000113897-A   TOYOTA JIDOSHA KK (TOYT)   IKUSHIMA K,  SHIMODA K,  FUNATSU J;  JP2001196079-A   IKEDA S (IKED-Individual)   IKEDA S;  JP2002151111-A   ;  JP2002530836-W   INST GAS TECHNOLOGY (IGTE)   MARIANOWSKI L G;  US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US6066408-A   PLUG POWER INC (PLUG-Non-standard)   VITALE N G,  JONES D O;  US20020081477-A1   ;  US20020122970-A1   ;  US6261710-B1   INST GAS TECHNOLOGY (IGTE)   MARIANOWSKI L G;  US6372373-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   GYOTEN H,  HATOH K,  NISHIDA K,  OHARA H,  YASUMOTO E,  KANBARA T,  UCHIDA M,  SUGAWARA Y,  MATSUMOTO T,  NAKAGAWA K;  DE102004006502-B4 -- DE10248531-A1   REINZ DICHTUNGS GMBH & CO KG (REIZ);  US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US20020081477-A1   ;  US6372373-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   GYOTEN H,  HATOH K,  NISHIDA K,  OHARA H,  YASUMOTO E,  KANBARA T,  UCHIDA M,  SUGAWARA Y,  MATSUMOTO T,  NAKAGAWA K;  DE102004006502-B8 -- DE10248531-A1   REINZ DICHTUNGS GMBH & CO KG (REIZ);  US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US20020081477-A1   ;  US6372373-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   GYOTEN H,  HATOH K,  NISHIDA K,  OHARA H,  YASUMOTO E,  KANBARA T,  UCHIDA M,  SUGAWARA Y,  MATSUMOTO T,  NAKAGAWA K