US2005260466-A1 -- US5208114-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   UEMATSU H,  HATORI S;  US5441819-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5518828-A   BECHTEL GROUP INC (BECH-Non-standard)   SENETAR J J;  US5543238-A   SIEMENS AG (SIEI)   STRASSER K;  US5928805-A   SIEMENS WESTINGHOUSE POWER CORP (SIEI)   SINGH P,  GEORGE R A;  US6007930-A   FORD GLOBAL TECHNOLOGIES INC (FORD)   ADAMS J A,  SULEK M S,  SALOKA G S;  US6106964-A   BALLARD POWER SYSTEMS INC (BLRD)   WELLS B W,  BARTON R H,  RONNE J A,  VOSS H H,  NIGSCH H A;  US20010053469-A1   ;  US6268074-B1   GENERAL MOTORS CORP (GENK)   SIEPIERSKI J S,  MOORE B S,  HOCH M M;  US6306532-B1   AISIN SEIKI KK (AISE)   KURITA K,  KIRYU K,  TAKADA K,  MATSUOKA A;  US6394207-B1   GENERAL MOTORS CORP (GENK)   SKALA G W;  US6447939-B1   NISSAN MOTOR CO LTD (NSMO)   IWASAKI Y;  US6497971-B1   INT FUEL CELLS LLC (ITFU)   REISER C A;  US6936359-B2   HONDA GIKEN KOGYO KK (HOND)   KOBAYASHI T,  KANAZAWA T,  NUIYA Y,  SHIMANUKI H;  US7470479-B2 -- JP58164157-A   ;  JP62219472-A   ;  JP2000195533-A   NIPPON JIDOSHA BUHIN SOGO (NIJI);  TOYOTA JIDOSHA KK (TOYT)   YAMADA T,  INAGAKI M,  ARAKI Y;  US5208114-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   UEMATSU H,  HATORI S;  US5441819-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5518828-A   BECHTEL GROUP INC (BECH-Non-standard)   SENETAR J J;  US5543238-A   SIEMENS AG (SIEI)   STRASSER K;  US5928805-A   SIEMENS WESTINGHOUSE POWER CORP (SIEI)   SINGH P,  GEORGE R A;  US6007930-A   FORD GLOBAL TECHNOLOGIES INC (FORD)   ADAMS J A,  SULEK M S,  SALOKA G S;  US6106964-A   BALLARD POWER SYSTEMS INC (BLRD)   WELLS B W,  BARTON R H,  RONNE J A,  VOSS H H,  NIGSCH H A;  US20010053469-A1   ;  US6268074-B1   GENERAL MOTORS CORP (GENK)   SIEPIERSKI J S,  MOORE B S,  HOCH M M;  US6306532-B1   AISIN SEIKI KK (AISE)   KURITA K,  KIRYU K,  TAKADA K,  MATSUOKA A;  US6394207-B1   GENERAL MOTORS CORP (GENK)   SKALA G W;  US6447939-B1   NISSAN MOTOR CO LTD (NSMO)   IWASAKI Y;  US6497971-B1   INT FUEL CELLS LLC (ITFU)   REISER C A;  US6936359-B2   HONDA GIKEN KOGYO KK (HOND)   KOBAYASHI T,  KANAZAWA T,  NUIYA Y,  SHIMANUKI H