US5252410-A -- EP80129-A   ;  JP93268   ;  US3297484-A   GENERAL ELECTRIC CO (GENE);  US3554809-A   GENERAL ELECTRIC CO (GENE);  US4175165-A   ENGELHARD MINERALS CORP (ENGH)   ADLHART O J;  US4279970-A   ;  US4345008-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4894355-A   HITACHI LTD (HITA)   TAKEUCHI S,  EBARA K,  KAMO T,  IWAMOTO K,  HORIBA T,  KUMAGAL T,  TAMURA K,  KITAMI K;  US4929517-A   INT FUEL CELLS CORP (ITFU)   LUOMA W L,  MARTIN R G,  BREAULT R D;  US4977041-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   SHIOZAWA S,  SHIMIZU T;  WO9409519-A1 -- EP80129-A   ;  EP664928-A1   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  JP56093268-A   ;  US4345008-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4929517-A   INT FUEL CELLS CORP (ITFU)   LUOMA W L,  MARTIN R G,  BREAULT R D;  US4977041-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   SHIOZAWA S,  SHIMIZU T;  EP664928-A1 -- AT389020-B   ;  DE3013043-A   LICENTIA PATENT-VERW GMBH (LICN)   BOEHM H,  FLEISCHMAN R;  EP343679-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  EP415733-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  FR2398392-A   ENGELHARD MINERALS CORP (ENGH)   ADLHART O J;  JP60227361-A   FUJI ELECTRIC CORP RES & DEV (FUEL)   SAKURAI M,  SUGIYAMA T;  JP63269458-A   SHIN KOBE ELECTRIC MACHINERY (KOBE)   NOMURA Y,  KONUKI T;  US3589942-A   CONSOLIDATED NATURAL GAS (CON-Non-standard);  US4129685-A   UNITED TECHNOLOGIES CORP (UNAC);  US4233369-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D,  ROETHLEIN R J,  CONGDON J V;  US4615955-A   HITACHI LTD (HITA)   AMAGAWA H,  UOZUMI S;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  WO1992013365-A1   ;  WO1994005049-A1   ;  EP664928-A4 -- AT389020-B   ;  DE3013043-A   LICENTIA PATENT-VERW GMBH (LICN)   BOEHM H,  FLEISCHMAN R;  EP343679-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  EP415733-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  FR2398392-A   ENGELHARD MINERALS CORP (ENGH)   ADLHART O J;  JP60227361-A   FUJI ELECTRIC CORP RES & DEV (FUEL)   SAKURAI M,  SUGIYAMA T;  JP63269458-A   SHIN KOBE ELECTRIC MACHINERY (KOBE)   NOMURA Y,  KONUKI T;  US3589942-A   CONSOLIDATED NATURAL GAS (CON-Non-standard);  US4129685-A   UNITED TECHNOLOGIES CORP (UNAC);  US4233369-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D,  ROETHLEIN R J,  CONGDON J V;  US4615955-A   HITACHI LTD (HITA)   AMAGAWA H,  UOZUMI S;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  WO1992013365-A1   ;  WO1994005049-A1   ;  AU672958-B -- US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4929517-A   INT FUEL CELLS CORP (ITFU)   LUOMA W L,  MARTIN R G,  BREAULT R D;  US4977041-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   SHIOZAWA S,  SHIMIZU T;  JP3110760-B2 -- EP80129-A   ;  JP01189868-A   ;  JP03102774-A   ;  JP04047671-A   ;  JP04267062-A   ;  JP05242894-A   ;  JP57126078-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  JP62150667-A   ;  JP63269458-A   SHIN KOBE ELECTRIC MACHINERY (KOBE)   NOMURA Y,  KONUKI T;  EP1146584-A2 -- DE3013043-A   LICENTIA PATENT-VERW GMBH (LICN)   BOEHM H,  FLEISCHMAN R;  US4129685-A   UNITED TECHNOLOGIES CORP (UNAC);  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  EP664928-B1 -- AT389020-B   ;  DE3013043-A   LICENTIA PATENT-VERW GMBH (LICN)   BOEHM H,  FLEISCHMAN R;  EP80129-A   ;  EP343679-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  EP415733-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  FR2398392-A   ENGELHARD MINERALS CORP (ENGH)   ADLHART O J;  JP56093268-A   ;  JP63269458-A   SHIN KOBE ELECTRIC MACHINERY (KOBE)   NOMURA Y,  KONUKI T;  US3589942-A   CONSOLIDATED NATURAL GAS (CON-Non-standard);  US4129685-A   UNITED TECHNOLOGIES CORP (UNAC);  US4233369-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D,  ROETHLEIN R J,  CONGDON J V;  US4345008-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4615955-A   HITACHI LTD (HITA)   AMAGAWA H,  UOZUMI S;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US4929517-A   INT FUEL CELLS CORP (ITFU)   LUOMA W L,  MARTIN R G,  BREAULT R D;  US4977041-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   SHIOZAWA S,  SHIMIZU T;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  WO1992013365-A1   ;  WO1994005049-A1