US6303245-B1 -- EP41294-A   ELECTROCHEM ENERGIECONVERSIE (ELEC-Non-standard)   ALFENAAR M,  LEIJEN J J P,  SCHLOESSER W J;  US4169917-A   ENERGY RES CORP (ENER-Non-standard)   BAKER B S,  DHARIA D J;  US4678724-A   GENERAL ELECTRIC CO (GENE);  UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US4774154-A   INT FUEL CELLS CORP (ITFU)   SINGELYN J D,  GELTING R,  MIENTEK A P;  US4795536-A   ALLIED-SIGNAL INC (ALLC)   YOUNG P,  POLAK A J;  US4797185-A   ALLIED-SIGNAL INC (ALLC)   POLAK A J,  PETTYWEEKS S,  PETTY-WEEKS S;  US4824741-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US4973530-A   US DEPT ENERGY (USAT)   VANDERBORG N E,  HEDSTROM J C;  US4988583-A   CANADA MIN NAT DEFENCE (MIND);  CANADIAN GOVERNMENT (CNDG)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5110691-A   INT FUEL CELLS CORP (ITFU)   KRASIJ M,  WATSON P R;  US5262249-A   INT FUEL CELLS CORP (ITFU)   BEAL D W,  BREAULT R D;  US5262250-A   TANAKA KIKINZOKU KOGYO KK (TANI);  WATANABE M (WATA-Individual)   WATANABE M;  US5264299-A   INT FUEL CELLS CORP (ITFU)   KRASIJ M,  WATSON P R;  US5284718-A   BALLARD POWER SYSTEMS INC (BLRD)   RAMJI S,  WASHINGTON K B,  CHOW C Y,  WATKINS D S;  US5300370-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WASHINGTON K B;  US5322744-A   FUJI ELECTRIC CO LTD (FJIE)   KOSEKI K;  US5382478-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B M,  CHOW C Y;  US5432020-A   DAIMLER-BENZ AG (DAIM)   FLECK W;  US5432021-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5441819-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5482680-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  DUDLEY J,  LAMONT G J,  BASURA V;  US5503945-A   INST GAS TECHNOLOGY (IGTE)   BACHTA R P,  MARIANOWSKI L G,  MEEK J,  PETRI R J;  US5514487-A   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  WASHINGTON K B,  KENNA J T;  US5523175-A   INT FUEL CELLS INC (ITFU)   BEAL D,  MARTIN R G,  GORMAN M E;  US5529855-A   TANAKA KIKINZOKU KOGYO KK (TANI);  WATANABE M (WATA-Individual)   WATANABE M;  US5547776-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  CHOW C Y,  POW E G,  WOZNICZKA B M,  VOSS H H,  HORNBURG G;  US5686199-A   ALLIED-SIGNAL INC (ALLC)   WALSWORTH E,  CAVALCA C,  HOMEYER S T;  US5733682-A   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   QUADAKKERS W J,  BAUMANNS F,  NICKEL H;  US5773682-A   ;  US5840414-A   INT FUEL CELLS CORP (ITFU)   BETT J A S,  WHEELER D J,  BUSHNELL C;  US5840438-A   BALLARD POWER SYSTEMS INC (BLRD)   JOHNSON M C,  WILKINSON D P,  ASMAN C P,  BOS M L,  POTTER R J;  US5853909-A   INT FUEL CELLS LLC (ITFU-Non-standard)   REISER C;  US5858567-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5863671-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5906898-A   M-C POWER CORP (MCPO-Non-standard)   PONDO J M;  US6007931-A   INT FUEL CELLS CORP (ITFU)   FULLER T F,  MARGIOTT P R,  VAN DINE L L;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6071635-A   PLUG POWER LLC (PLUG-Non-standard)   CARLSTROM C M