EP1084749-A2 -- DE4423587-A1   ;  EP592958-A1   MITSUBISHI GAS CHEM CO INC (MITN)   YONEOKA M,  WATABE K,  YAMAGISHI K,  OSUGI M;  EP884271-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  CHRISTEN A,  SCHUESSLER M,  ZUR MEGEDE D;  EP924161-A2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  POSCHMANN T,  SCHUESSLER M,  WIELAND S;  JP62036001-A   ;  US3515514-A   HOLMES PD AND THORNHILL A (HOL-Individual);  US4089088-A   ;  US4533648-A   PROCTER & GAMBLE CO (PROC)   CORRIGAN P J,  KING R M,  VANDIEST S A;  US4816353-A   INT FUEL CELLS CORP (ITFU);  US4855267-A   DU PONT DE NEMOURS & CO E I (DUPO)   CHENG W H;  US5075268-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  JAPAN MIN INT TRADE & IND (NIIT)   KURASHIGE M,  TAKIGUCHI M,  MATSUO N;  US5618954-A   BASF AG (BADI)   HERZOG K,  FISCHER R,  VOGEL H,  FISCHER M;  US5762658-A   JOHNSON MATTHEY PLC (JOHO)   EDWARDS N,  FROST J C,  JONES A,  PIGNON J F;  US5939025-A   UNIV CHICAGO (UYCG)   AHMED S,  KRUMPELT M,  KUMAR R;  WO1999031012-A1   ;  DE19944536-A1 -- DE1094244-B   ;  DE1246688-C   ;  US6486087-B1 -- DE1246688-A   ;  DE4423587-A1   ;  DE1094244-B   ;  EP592958-A1   MITSUBISHI GAS CHEM CO INC (MITN)   YONEOKA M,  WATABE K,  YAMAGISHI K,  OSUGI M;  EP884271-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  CHRISTEN A,  SCHUESSLER M,  ZUR MEGEDE D;  EP924161-A2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  POSCHMANN T,  SCHUESSLER M,  WIELAND S;  JP04200640-A   ;  JP62036001-A   ;  US3515514-A   HOLMES PD AND THORNHILL A (HOL-Individual);  US4089088-A   ;  US4533648-A   PROCTER & GAMBLE CO (PROC)   CORRIGAN P J,  KING R M,  VANDIEST S A;  US4623668-A   ;  US4777156-A   MOBIL OIL CORP (MOBI)   FORBUS N P,  WU M M S;  US4816353-A   INT FUEL CELLS CORP (ITFU);  US4855267-A   DU PONT DE NEMOURS & CO E I (DUPO)   CHENG W H;  US5001094-A   MOBIL OIL CORP (MOBI)   CHANG C D,  CHU C T W;  US5075268-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  JAPAN MIN INT TRADE & IND (NIIT)   KURASHIGE M,  TAKIGUCHI M,  MATSUO N;  US5132259-A   DOW CHEM CO (DOWC)   CURNUTT G L;  US5618954-A   BASF AG (BADI)   HERZOG K,  FISCHER R,  VOGEL H,  FISCHER M;  US5691262-A   BASF AG (BADI)   HAGEMEYER A,  WATZENBERGER O,  DEIMLING A;  US5762658-A   JOHNSON MATTHEY PLC (JOHO)   EDWARDS N,  FROST J C,  JONES A,  PIGNON J F;  US5928985-A   IMPERIAL CHEM IND PLC (ICIL)   WILLIAMS B P;  US5939025-A   UNIV CHICAGO (UYCG)   AHMED S,  KRUMPELT M,  KUMAR R;  US6074770-A   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BASF AG (BADI)   AUTENRIETH R,  CHRISTEN A,  SCHUESSLER M,  KRUMBERGER O;  US6171992-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  CHRISTEN A,  ZUR MEGEDE D;  WO1999031012-A1