WO200033407-A1 -- DE19741331-A1   ;  DE19802038-A1   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   MENZER R,  HOEHLEIN B;  DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  EP743693-A1   SANYO ELECTRIC CO LTD (SAOL)   HAMADA A,  MATSUBAYASHI T,  NAKAOKA T,  MIYAKE Y,  NAKAJIMA T;  EP851519-A1   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP62066581-A   ;  JP63232273-A   HITACHI LTD (HITA)   TSUTSUMI Y;  WO1999060633-A2   ;  GB2370407-A -- DE9802038-A   ;  DE19741331-A1   ;  DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  EP743693-A1   SANYO ELECTRIC CO LTD (SAOL)   HAMADA A,  MATSUBAYASHI T,  NAKAOKA T,  MIYAKE Y,  NAKAJIMA T;  EP851519-A1   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP62066581-A   ;  JP63232273-A   HITACHI LTD (HITA)   TSUTSUMI Y;  WO1999060633-A2   ;  US6682839-B2 -- DE19741331-A1   ;  DE19802038-A1   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   MENZER R,  HOEHLEIN B;  DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  EP743693-A1   SANYO ELECTRIC CO LTD (SAOL)   HAMADA A,  MATSUBAYASHI T,  NAKAOKA T,  MIYAKE Y,  NAKAJIMA T;  EP851519-A1   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP62066581-A   ;  JP63232273-A   HITACHI LTD (HITA)   TSUTSUMI Y;  US3964930-A   UNITED TECHNOLOGIES CORP (UNAC)   REISER C A;  US5185218-A   LUZ ELECTRIC FUEL ISRAEL LTD (LUZE-Non-standard)   BROKMAN A,  GOLDSTEIN J;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5206094-A   US SEC OF AIR FORCE (USAF)   KATZ M;  US5230966-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  CHOW C Y;  US5344721-A   TOSHIBA KK (TOKE)   MUNEUCHI A,  MURATA K;  US5366821-A   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  US5397491-A   HUELS AG (CHEM)   HONS G,  VOGES H W;  US5484666-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  SCHLOSSER W,  GIBB P,  VOSS H H;  US5514487-A   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  WASHINGTON K B,  KENNA J T;  US5958613-A   SANYO ELECTRIC CO LTD (SAOL)   HAMADA A,  MATSUBAYASHI T,  NAKAOKA T,  MIYAKE Y,  NAKAJIMA T;  WO1999060633-A2