EP976679-A1 -- DE4334983-A1   ;  DE19539648-A1   ;  DE19544895-C1   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US5330727-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SCHROLL C R,  LESIEUR R R;  WO1997025752-A1   ;  EP976679-B1 -- DE4334983-A1   ;  DE19539648-A1   ;  DE19544895-C1   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US5330727-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SCHROLL C R,  LESIEUR R R;  WO1997025752-A1   ;  JP3733753-B2 -- JP08047621-A   ;  JP08100184-A   ;  JP08106914-A   ;  JP08133701-A   ;  JP10072202-A   ;  JP10101302-A   TOYOTA JIDOSHA KK (TOYT)   AOYAMA S;  JP11260387-A   ;  JP3808232-B2 -- JP08034601-A   ;  JP08047621-A   ;  JP08133702-A   ;  JP10302821-A   ;  JP10302825-A   ;  JP11130406-A   ;  JP63241878-A   ;  JP2000264604-A   ;  JP2791130-B2   ;  JP2869525-B2   ;  US2006233690-A1 -- US2898183-A   ;  US3109715-A   ;  US3262758-A   ;  US3785781-A   UNIVERSAL OIL PROD CO (UNVO);  US3910770-A   GULF RES & DEV CO (GULF)   KOBYLINKSI T P,  TAYLOR B W;  US3914377-A   MOBIL OIL CORP (MOBI);  US3962869-A   BOSCH GMBH ROBERT (BOSC);  US4118199-A   DEUT GOLD & SILBER AG (DEGS)   VOELKER H,  KOBERSTEIN E,  HENSEL J;  US4714593-A   TOYO ENG CORP (TOXS)   NAITO A,  UOZU H,  NUMAGUCHI T;  US5271916-A   GENERAL MOTORS CORP (GENK)   GUANTE J,  VANDERBORGH N E,  NGUYEN T V;  US5330727-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SCHROLL C R,  LESIEUR R R;  US5464606-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  BUSWELL R F,  CLAUSI J V;  US5518705-A   BALLARD POWER SYSTEMS INC (BLRD)   MCNEILLY L,  WATKINS D S,  BUSWELL R F,  COHEN R;  US5609832-A   AMOCO CORP (STAD)   WASHECHECK D M,  HIRSCHBERG E H,  DICTOR R A,  RENNER T A,  MIEVILLE R L,  ROBINSON L C;  US5874051-A   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US6029443-A   TOYOTA JIDOSHA KK (TOYT)   HIROTA S,  TANAKA T,  IGUCHI S,  MIZUNO T;  US7674445-B2 -- DE4334983-A1   ;  DE19539648-A1   ;  DE19544895-C1   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  GB2233748-A   ;  JP05201702-A   ;  JP06064901-A   ;  JP10101303-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S,  TAKI M;  US2898183-A   ;  US3109715-A   ;  US3262758-A   ;  US3345136-A   ;  US3785781-A   UNIVERSAL OIL PROD CO (UNVO);  US3910770-A   GULF RES & DEV CO (GULF)   KOBYLINKSI T P,  TAYLOR B W;  US3914377-A   MOBIL OIL CORP (MOBI);  US3962869-A   BOSCH GMBH ROBERT (BOSC);  US4118199-A   DEUT GOLD & SILBER AG (DEGS)   VOELKER H,  KOBERSTEIN E,  HENSEL J;  US4714593-A   TOYO ENG CORP (TOXS)   NAITO A,  UOZU H,  NUMAGUCHI T;  US5271916-A   GENERAL MOTORS CORP (GENK)   GUANTE J,  VANDERBORGH N E,  NGUYEN T V;  US5330727-A   INT FUEL CELLS CORP (ITFU)   TROCCIOLA J C,  SCHROLL C R,  LESIEUR R R;  US5464606-A   BALLARD POWER SYSTEMS INC (BLRD)   LOUIE C,  BUSWELL R F,  CLAUSI J V;  US5518705-A   BALLARD POWER SYSTEMS INC (BLRD)   MCNEILLY L,  WATKINS D S,  BUSWELL R F,  COHEN R;  US5609832-A   AMOCO CORP (STAD)   WASHECHECK D M,  HIRSCHBERG E H,  DICTOR R A,  RENNER T A,  MIEVILLE R L,  ROBINSON L C;  US5874051-A   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US6029443-A   TOYOTA JIDOSHA KK (TOYT)   HIROTA S,  TANAKA T,  IGUCHI S,  MIZUNO T;  WO1995008850-A1   ;  WO1997025752-A1