WO9850973-A1 -- DE4206490-A1   FRAUNHOFER GES FOERDERUNG (FRAU)   LEDJEFF K,  PEINECKE V;  EP629015-A1   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  EP774794-A1   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  JP05101837-A   ;  JP08124583-A   ;  JP08148170-A   ;  WO1994009519-A1   ;  WO1995016287-A1   ;  WO1997008766-A2   ;  WO1997013287-A2   ;  US5976726-A -- DE4206490-A1   FRAUNHOFER GES FOERDERUNG (FRAU)   LEDJEFF K,  PEINECKE V;  EP174762-A   ENGELHARD CORP (ENGH)   KAUFMAN A,  WERTH J;  EP629015-A1   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  EP690519-A1   JAPAN GORE TEX INC (NIGO)   KATO H,  TORIKAI E;  EP774794-A1   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  JP05101837-A   ;  JP07296818-A   ;  JP08124583-A   ;  JP08148170-A   ;  US3679485-A   ;  US4219611-A   UNITED TECHNOLOGIES CORP (UNAC)   BREAULT R D;  US4555324-A   TOSHIBA KK (TOKE)   UENO M,  SHIROGAMI T,  MIKOGAMI Y;  US4983472-A   INT FUEL CELLS CORP (ITFU)   KATZ M,  BONK S P,  MARICLE D L,  ABRAMS M;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  US5219674-A   INT FUEL CELLS CORP (ITFU)   SINGELYN J D,  ELMORE D E;  US5284718-A   BALLARD POWER SYSTEMS INC (BLRD)   RAMJI S,  WASHINGTON K B,  CHOW C Y,  WATKINS D S;  US5441621-A   UNITED TECHNOLOGIES CORP (UNAC)   MOLTER T,  FAYE D,  ARMSTRONG W;  US5480735-A   INT FUEL CELLS CORP (ITFU)   PLASSE P A,  LANDSMAN D A;  US5523175-A   INT FUEL CELLS INC (ITFU)   BEAL D,  MARTIN R G,  GORMAN M E;  US5565072-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  WO1994009519-A1   ;  WO1995016287-A1   ;  WO1997008766-A2   ;  WO1997013287-A2   ;  AU722522-B -- WO1995016287-A1   ;  WO1997013287-A2   ;  EP979534-B1 -- DE4206490-A1   FRAUNHOFER GES FOERDERUNG (FRAU)   LEDJEFF K,  PEINECKE V;  EP629015-A1   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  EP774794-A1   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  JP05101837-A   ;  JP08124583-A   ;  JP08148170-A   ;  WO1994009519-A1   ;  WO1995016287-A1   ;  WO1997008766-A2   ;  WO1997013287-A2