WO2003096462-A1 -- US5976726-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  STUMPER J,  CAMPBELL S A,  DAVIS M T,  LAMONT G J;  US6051331-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US20020192532-A1   ;  US6350538-B1   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  CAMPBELL S A,  STUMPER J;  US2004018412-A1 -- US4217401-A   ORONZIO DE NORA IMPIANTI ELETR (ORON);  ELCHE LTD (ELCH-Non-standard)   PELLEGRI A,  SPAZIANTE P M;  US5110693-A   HYPERION CATALYSIS INT (HYPE-Non-standard)   FRIEND S O,  ATKINS J H,  TENNENT H G,  HAUSSLEIN R,  MOY D,  CHISHTI A;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  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;  US5521018-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  LAMONT G J,  VOSS H H,  SCHWAB C;  US5683828-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5773160-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  VOSS H H,  JOHNSON M C,  POW E G,  WILKINSON D P;  US5804326-A   BALLARD POWER SYSTEMS INC (BLRD)   CHOW C Y,  WOZNICZKA B,  CHAN J K K;  US5863673-A   BALLARD POWER SYSTEMS INC (BLRD)   CAMPBELL S A,  STUMPER J,  WILKINSON D P,  DAVIS M T;  US5928807-A   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  US5976726-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  STUMPER J,  CAMPBELL S A,  DAVIS M T,  LAMONT G J;  US6001502-A   PLUG POWER LLC (PLUG-Non-standard)   WALSH M M;  US6051331-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US6057054-A   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H,  GIBB P R,  RONNE J A,  VOSS H H;  US6060190-A   BALLARD POWER SYSTEMS INC (BLRD)   CAMPBELL S A,  WILKINSON D P,  DAVIS M T,  STUMPER J;  US6074773-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  CAMPBELL S A,  ROBERTS J A;  US6080503-A   BALLARD POWER SYSTEMS INC (BLRD)   SCHMID O,  EINHART J;  US6103077-A   DE NORA SPA (ORON)   DEMARINIS M,  DE CASTRO E S,  ALLEN R J,  SHAIKH K;  US6350538-B1   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  CAMPBELL S A,  STUMPER J;  US7303832-B2 -- US4217401-A   ORONZIO DE NORA IMPIANTI ELETR (ORON);  ELCHE LTD (ELCH-Non-standard)   PELLEGRI A,  SPAZIANTE P M;  US5110693-A   HYPERION CATALYSIS INT (HYPE-Non-standard)   FRIEND S O,  ATKINS J H,  TENNENT H G,  HAUSSLEIN R,  MOY D,  CHISHTI A;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  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;  US5464700-A   BALLARD POWER SYSTEMS INC (BLRD)   STECK A E,  WEI J;  US5521018-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  LAMONT G J,  VOSS H H,  SCHWAB C;  US5683828-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5773160-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  VOSS H H,  JOHNSON M C,  POW E G,  WILKINSON D P;  US5804326-A   BALLARD POWER SYSTEMS INC (BLRD)   CHOW C Y,  WOZNICZKA B,  CHAN J K K;  US5863673-A   BALLARD POWER SYSTEMS INC (BLRD)   CAMPBELL S A,  STUMPER J,  WILKINSON D P,  DAVIS M T;  US5928807-A   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  US5976726-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  STUMPER J,  CAMPBELL S A,  DAVIS M T,  LAMONT G J;  US6001502-A   PLUG POWER LLC (PLUG-Non-standard)   WALSH M M;  US6051331-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US6057054-A   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H,  GIBB P R,  RONNE J A,  VOSS H H;  US6060190-A   BALLARD POWER SYSTEMS INC (BLRD)   CAMPBELL S A,  WILKINSON D P,  DAVIS M T,  STUMPER J;  US6074773-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  CAMPBELL S A,  ROBERTS J A;  US6080503-A   BALLARD POWER SYSTEMS INC (BLRD)   SCHMID O,  EINHART J;  US6103077-A   DE NORA SPA (ORON)   DEMARINIS M,  DE CASTRO E S,  ALLEN R J,  SHAIKH K;  US6159629-A   BALLARD POWER SYSTEMS INC (BLRD)   GIBB P R,  YIP D K;  US6350538-B1   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  CAMPBELL S A,  STUMPER J