WO9516287-A1 -- JP61007570-A   ;  JP61007571-A   ;  US3755000-A   ;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  US5284718-A   BALLARD POWER SYSTEMS INC (BLRD)   RAMJI S,  WASHINGTON K B,  CHOW C Y,  WATKINS D S;  WO1993006627-A1   ;  WO1994011912-A1   ;  AU9454159-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WASHINGTON K B;  US4988583-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5300370-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WASHINGTON K B;  US5521018-A -- JP61007570-A   ;  JP61007571-A   ;  US3755000-A   ;  US4459342-A   KUREHA KAGAKU KOGYO KK (KURE)   SHIGETA M,  SAITOH K,  FUKUDA H;  US4743518-A   INT FUEL CELLS CORP (ITFU)   ROMANOWSKI W E;  US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US4824741-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US4988583-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  US5230966-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  CHOW C Y;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  US5284718-A   BALLARD POWER SYSTEMS INC (BLRD)   RAMJI S,  WASHINGTON K B,  CHOW C Y,  WATKINS D S;  WO1993006627-A1   ;  WO1994011912-A1   ;  US5527363-A -- JP61007570-A   ;  JP61007571-A   ;  US3755000-A   ;  US4459342-A   KUREHA KAGAKU KOGYO KK (KURE)   SHIGETA M,  SAITOH K,  FUKUDA H;  US4743518-A   INT FUEL CELLS CORP (ITFU)   ROMANOWSKI W E;  US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US4824741-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US4988583-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  US5230966-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  CHOW C Y;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  US5284718-A   BALLARD POWER SYSTEMS INC (BLRD)   RAMJI S,  WASHINGTON K B,  CHOW C Y,  WATKINS D S;  WO1993006627-A1   ;  WO1994011912-A1