EP945910-A2 -- DE19602629-A1   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  DE19606612-A1   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   OETJEN H,  SCHMIDT V;  EP577291-A1   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  EP718903-A1   JAPAN GORE TEX INC (NIGO)   KATO H;  EP785588-A2   TOYOTA JIDOSHA KK (TOYT)   KAWAHARA T;  EP797265-A2   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  US5234777-A   US DEPT ENERGY (USAT)   WILSON M S;  US5620807-A   DOW CHEM CO (DOWC)   PLOWMAN K R,  SCORTICHINI C L,  WEBB S P,  MUSSELL R D;  WO1992015121-A1   ;  WO1994025993-A1   ;  WO1997013287-A2   ;  DE19812592-A1 -- DE19602629-A1   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  DE19606612-A1   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   OETJEN H,  SCHMIDT V;  DE19611510-A1   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  EP577291-A1   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  US5211984-A   UNIV CALIFORNIA (REGC)   WILSON M S;  US5415888-A   DU PONT DE NEMOURS & CO E I (DUPO);  H-POWER CORP (HPOW-Non-standard)   BANERJEE S,  GROT W G,  BLOOMFIELD D P;  US6309772-B1 -- DE19602629-A1   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  DE19606612-A1   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   OETJEN H,  SCHMIDT V;  DE19611510-A1   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  EP577291-A1   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5211984-A   UNIV CALIFORNIA (REGC)   WILSON M S;  US5234777-A   US DEPT ENERGY (USAT)   WILSON M S;  US5415888-A   DU PONT DE NEMOURS & CO E I (DUPO);  H-POWER CORP (HPOW-Non-standard)   BANERJEE S,  GROT W G,  BLOOMFIELD D P;  US5620807-A   DOW CHEM CO (DOWC)   PLOWMAN K R,  SCORTICHINI C L,  WEBB S P,  MUSSELL R D;  US5869201-A   MARCHETTI G A (MARC-Individual)   MARCHETTI G A;  DE19812592-B4 -- DE19602629-A1   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  DE19606612-A1   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   OETJEN H,  SCHMIDT V;  DE19611510-A1   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  EP577291-A1   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  US5211984-A   UNIV CALIFORNIA (REGC)   WILSON M S;  US5415888-A   DU PONT DE NEMOURS & CO E I (DUPO);  H-POWER CORP (HPOW-Non-standard)   BANERJEE S,  GROT W G,  BLOOMFIELD D P;  JP4465058-B2 -- JP08088008-A   ;  JP08264190-A   ;  JP09180730-A