WO200026981-A2 -- JP09055215-A   ;  JP11297343-A   ;  JP62086670-A   ;  US3814631-A   ALSTHOM SOC GEN CONSTR ELEC (ALST);  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  WO1994011912-A1   ;  WO1998052242-A1   ;  US6555261-B1 -- JP09055215-A   ;  JP11297343-A   ;  JP62086670-A   ;  US3814631-A   ALSTHOM SOC GEN CONSTR ELEC (ALST);  US4812352-A   MINNESOTA MINING & MFG CO (MINN)   DEBE M;  US4855193-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5039561-A   MINNESOTA MINING & MFG CO (MINN)   DEBE M;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5211984-A   UNIV CALIFORNIA (REGC)   WILSON M S;  US5234777-A   US DEPT ENERGY (USAT)   WILSON M S;  US5252410-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B;  US5272017-A   GENERAL MOTORS CORP (GENK)   SWATHIRAJAN S,  MIKHAIL Y M;  US5316871-A   GENERAL MOTORS CORP (GENK)   SWATHIRAJAN S,  MIKHAIL Y M;  US5618392-A   TANAKA KIKINZOKU KOGYO KK (TANI);  FURUYA C (FURU-Individual)   FURUYA C;  US5620807-A   DOW CHEM CO (DOWC)   PLOWMAN K R,  SCORTICHINI C L,  WEBB S P,  MUSSELL R D;  US5641586-A   UNIV CALIFORNIA OFFICE TECHNOLOGY (REGC)   WILSON M S;  US5683828-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5686199-A   ALLIED-SIGNAL INC (ALLC)   WALSWORTH E,  CAVALCA C,  HOMEYER S T;  US5728446-A   JOHNSTON R P (JOHN-Individual);  SERVATIUS J A (SERV-Individual);  FEHR R T (FEHR-Individual)   JOHNSTON R P,  FEHR R T,  SERVATIUS J A;  US5773160-A   BALLARD POWER SYSTEMS INC (BLRD)   FLETCHER N J,  VOSS H H,  JOHNSON M C,  POW E G,  WILKINSON D P;  US5789093-A   TEXAS INSTR INC (TEXI)   MALHI S;  US5798187-A   UNIV CALIFORNIA (REGC)   WILSON M S,  ZAWODZINSKI C;  US5798188-A   DU PONT DE NEMOURS & CO E I (DUPO)   TAKEDA T,  MUKOHYAMA A;  US5804326-A   BALLARD POWER SYSTEMS INC (BLRD)   CHOW C Y,  WOZNICZKA B,  CHAN J K K;  US5840438-A   BALLARD POWER SYSTEMS INC (BLRD)   JOHNSON M C,  WILKINSON D P,  ASMAN C P,  BOS M L,  POTTER R J;  US5858567-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5858569-A   PLUG POWER LLC (PLUG-Non-standard)   VITALE N G,  MEACHER J;  US5863671-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5885728-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J;  US5922485-A   FUJI ELECTRIC CO LTD (FJIE)   ENAMI Y;  US5935725-A   BCS TECHNOLOGY (BCST-Non-standard)   DHAR H P,  LEWINSKI K A;  US5945232-A   PLUG POWER LLC (PLUG-Non-standard)   ERNST W D,  MITTLEMAN G;  US6007933-A   PLUG POWER LLC (PLUG-Non-standard)   JONES D O;  US6071635-A   PLUG POWER LLC (PLUG-Non-standard)   CARLSTROM C M;  US6162507-A   ;  US6329094-B1   SANYO ELECTRIC CO LTD (SAOL)   YASUO T,  NAKAOKA T,  HAMADA A,  MIYAKE Y,  YOSHIMOTO Y,  KARAKANE M;  WO1994011912-A1   ;  WO1998052242-A1   ;  WO2000041260-A2