US2003104260-A1 -- US4218526-A   GEN BATTERY CORP (GEBA)   DIGIACOMO H L,  SACCO J A;  US4642274-A   SANYO ELECTRIC CO (SAOL);  TSUTSUMI M (TSUT-Individual)   TSUTSUMI M,  HAGINO H,  GOTO K,  FUJIWARA O;  US4842962-A   BASS R H (BASS-Individual)   BASS R H;  US5213909-A   HITACHI LTD (HITA)   TAKASHIMA T,  OTSUKA K,  KAHARA T,  KOMATSU Y;  US5258242-A   OVONIC BATTERY CO INC (ENGD)   DEAN K,  HOLLAND A,  FILLMORE D;  US5324565-A   UNITED TECHNOLOGIES CORP (UNAC)   LEONIDA A,  MOULTHROP L C;  US5409787-A   ELECTROSOURCE INC (ELEC-Non-standard)   BLANYER R J,  JAY B E;  US5629104-A   DETROIT CENT TOOL (DETR-Non-standard)   GOSTEK M,  CRAWFORD M H,  CRAWFORD M D,  WILSON C L;  US5741605-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GILLETT J E,  DEDERER J T,  ZAFRED P R,  COLLIE J C;  US5789091-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  FLETCHER N J,  GIBB P R;  US5993987-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  FLETCHER N J,  GIBB P R;  US6001502-A   PLUG POWER LLC (PLUG-Non-standard)   WALSH M M;  US6194095-B1   HOCKADAY R G (HOCK-Individual)   HOCKADAY R G;  US6218039-B1   PLUG POWER INC (PLUG-Non-standard)   MEASE K L,  BRUNNER A K,  PITTS L A,  WINSLOW A F;  US6596427-B1   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  DEVAAL J,  TABATABAIAN M;  US6740442-B1   CENT RES INST ELECTRIC POWER (DENY)   ITOH H;  EP1341252-A1 -- EP1045468-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   ITOU H,  KOBAYASHI T,  KAJIWARA T;  JP02049360-A   ;  JP09092324-A   ;  US4642274-A   SANYO ELECTRIC CO (SAOL);  TSUTSUMI M (TSUT-Individual)   TSUTSUMI M,  HAGINO H,  GOTO K,  FUJIWARA O;  US5213909-A   HITACHI LTD (HITA)   TAKASHIMA T,  OTSUKA K,  KAHARA T,  KOMATSU Y;  US5993987-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  FLETCHER N J,  GIBB P R;  WO2002027836-A2   ;  US6862801-B2 -- US5741605-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GILLETT J E,  DEDERER J T,  ZAFRED P R,  COLLIE J C;  US6194095-B1   HOCKADAY R G (HOCK-Individual)   HOCKADAY R G;  US6218039-B1   PLUG POWER INC (PLUG-Non-standard)   MEASE K L,  BRUNNER A K,  PITTS L A,  WINSLOW A F;  US6596427-B1   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  DEVAAL J,  TABATABAIAN M;  US6740442-B1   CENT RES INST ELECTRIC POWER (DENY)   ITOH H;  EP989618-A1   DOUGLAS BATTERY MFG CO (DOUG-Non-standard)   VUTETAKIS D G,  CESTONE C R,  WILKIE S K;  EP1045468-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   ITOU H,  KOBAYASHI T,  KAJIWARA T;  JP02049360-A   ;  JP09092324-A   ;  US4218526-A   GEN BATTERY CORP (GEBA)   DIGIACOMO H L,  SACCO J A;  US4642274-A   SANYO ELECTRIC CO (SAOL);  TSUTSUMI M (TSUT-Individual)   TSUTSUMI M,  HAGINO H,  GOTO K,  FUJIWARA O;  US4842962-A   BASS R H (BASS-Individual)   BASS R H;  US5213909-A   HITACHI LTD (HITA)   TAKASHIMA T,  OTSUKA K,  KAHARA T,  KOMATSU Y;  US5258242-A   OVONIC BATTERY CO INC (ENGD)   DEAN K,  HOLLAND A,  FILLMORE D;  US5324565-A   UNITED TECHNOLOGIES CORP (UNAC)   LEONIDA A,  MOULTHROP L C;  US5409787-A   ELECTROSOURCE INC (ELEC-Non-standard)   BLANYER R J,  JAY B E;  US5629104-A   DETROIT CENT TOOL (DETR-Non-standard)   GOSTEK M,  CRAWFORD M H,  CRAWFORD M D,  WILSON C L;  US5789091-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  FLETCHER N J,  GIBB P R;  US5993987-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  FLETCHER N J,  GIBB P R;  US6001502-A   PLUG POWER LLC (PLUG-Non-standard)   WALSH M M;  WO1997044846-A1   ;  WO2002027836-A2   ;  EP1703580-A1 -- EP706229-A2   OSAKA GAS CO LTD (OSAG)   AKAGI K;  EP706229-A3   OSAKA GAS CO LTD (OSAG)   AKAGI K;  JP09092324-A   ;  US20020076601-A1   ;  EP1341252-B1 -- EP1045468-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   ITOU H,  KOBAYASHI T,  KAJIWARA T;  JP02049360-A   ;  JP09092324-A   ;  US4642274-A   SANYO ELECTRIC CO (SAOL);  TSUTSUMI M (TSUT-Individual)   TSUTSUMI M,  HAGINO H,  GOTO K,  FUJIWARA O;  US5213909-A   HITACHI LTD (HITA)   TAKASHIMA T,  OTSUKA K,  KAHARA T,  KOMATSU Y;  US5993987-A   BALLARD POWER SYSTEMS INC (BLRD)   WOZNICZKA B,  FLETCHER N J,  GIBB P R;  WO2002027836-A2   ;  EP1703580-B1 -- EP706229-A2   OSAKA GAS CO LTD (OSAG)   AKAGI K;  US20020076601-A1