DE19918997-A1 -- DE1949184-B   ;  DE2157722-C   UNITED AIRCRAFT CORP (UNAC);  DE19623919-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  DE19623937-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  WO200064576-A1 -- DE19623919-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  EP798798-A2   TOYOTA JIDOSHA KK (TOYT)   NEGISHI Y;  EP813262-A2   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  DE19918997-C2 -- DE1949184-B   ;  DE2157722-C   UNITED AIRCRAFT CORP (UNAC);  DE19623919-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  DE19623937-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  JP3782665-B2 -- JP07206401-A   ;  JP09315801-A   ;  JP60090802-A   ;  EP1173274-B1 -- DE19623919-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  EP798798-A2   TOYOTA JIDOSHA KK (TOYT)   NEGISHI Y;  EP813262-A2   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  US7377950-B2 -- DE1949184-B   ;  DE2157722-C   UNITED AIRCRAFT CORP (UNAC);  DE19623919-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  DE19623937-C1   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  DE19847211-C1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BONEBERG S,  BRAUCHLE S,  GEORG D,  GUERTLER J,  SCHAEFER M,  SCHUESSLER M,  WOLFSTEINER M;  EP798798-A2   TOYOTA JIDOSHA KK (TOYT)   NEGISHI Y;  EP813262-A2   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  US3585078-A   ;  US3745047-A   UNITED AIRCRAFT CORP (UNAC);  US5498487-A   WESTINGHOUSE ELECTRIC CORP (WESE)   BASEL R A,  RUKA R J;  US5874051-A   DAIMLER-BENZ AG (DAIM)   HEIL D,  STROBEL B,  WIESHEU N,  ZUR MEGEDE D,  BENZ U;  US5984986-A   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  AUTENRIETH R,  BENZ U;  US6048473-A   DAIMLER-BENZ AG (DAIM)   WIESHEU N,  DUELK C,  GERBERICH R,  DENDA M;  US6120925-A   TOYOTA JIDOSHA KK (TOYT)   KAWATSU S,  TAKI M;  US6299853-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BONEBERG S,  BRAUCHLE S,  GEORG D,  GUERTLER J,  SCHAEFER M,  SCHUESSLER M,  WOLFSTEINER M;  US6495113-B2   TOYOTA JIDOSHA KK (TOYT)   AOYAMA S