WO200155026-A1 -- EP920064-A1   GENERAL MOTORS CORP (GENK)   PETTIT W H;  EP924163-A2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  POSCHMANN T,  WIELAND S;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  WO1994023813-A1   ;  WO1999019456-A1   ;  US2003059729-A1 -- US4650727-A   US DEPT ENERGY (USAT)   VANDERBORG N E,  SPRINGER T E,  HUFF R;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US5823252-A   DAIMLER-BENZ AG (DAIM)   WAITKAT P,  BENZ U,  EINHART J;  US6187066-B1   DAIMLER-BENZ AG (DAIM);  DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BENZ U,  BONEBERG S,  HEIL D;  US6268075-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  POSCHMANN T,  WIELAND S;  US6866091-B2 -- US4650727-A   US DEPT ENERGY (USAT)   VANDERBORG N E,  SPRINGER T E,  HUFF R;  DE19639150-A1   DAIMLER-BENZ AG (DAIM);  DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BENZ U,  BONEBERG S,  HEIL D;  DE4426692-C1   DAIMLER-BENZ AG (DAIM)   WAITKAT P,  BENZ U,  EINHART J;  EP920064-A1   GENERAL MOTORS CORP (GENK)   PETTIT W H;  EP924163-A2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  POSCHMANN T,  WIELAND S;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US5823252-A   DAIMLER-BENZ AG (DAIM)   WAITKAT P,  BENZ U,  EINHART J;  US6187066-B1   DAIMLER-BENZ AG (DAIM);  DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BENZ U,  BONEBERG S,  HEIL D;  US6268075-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  POSCHMANN T,  WIELAND S;  WO1994023813-A1   ;  WO1999019456-A1   ;  DE10003275-B4 -- DE19754013-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  SCHUESSLER M,  STROBEL B,  WIELAND S,  ZUR MEGEDE D;  DE19840216-A1   AISIN SEIKI KK (AISE)   KIRYU K;  DE3320688-C   ;  DE4426692-C1   DAIMLER-BENZ AG (DAIM)   WAITKAT P,  BENZ U,  EINHART J;  DE19755814-C1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  ZUR MEGEDE D;  DE19639150-C2   DAIMLER-BENZ AG (DAIM);  DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BENZ U,  BONEBERG S,  HEIL D;  DE19755815-C2   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  HEIL D,  POSCHMANN T,  WIELAND S;  EP920064-A1   GENERAL MOTORS CORP (GENK)   PETTIT W H;  US3607419-A   UNITED AIRCRAFT CORP (UNAC);  US3689237-A   NORTH AMERICAN UTILITY CO (NAU-Non-standard)