EP1084990-A1 -- EP878442-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  ZUR MEGEDE D;  EP994068-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BACHINGER P,  KEPPELER B,  LAMLA O,  SCHOENROCK B,  SCHUESSLER M,  WAIDELICH D;  EP974392-A2   ;  JP07126001-A   ;  US5015444-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   KOGA M,  WATANABE T;  DE19944186-A1 -- DE19743673-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  STEFANOVSKI T,  ZUR MEGEDE D;  US5534328-A   DU PONT DE NEMOURS & CO E I (DUPO)   ASHMEAD J W,  BLAISDELL C T,  JOHNSON M H,  NYQUIST J,  PERROTTO J A,  RYLEY J F;  EP1084990-B1 -- EP878442-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  ZUR MEGEDE D;  EP994068-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BACHINGER P,  KEPPELER B,  LAMLA O,  SCHOENROCK B,  SCHUESSLER M,  WAIDELICH D;  EP974392-A2   ;  JP07126001-A   ;  US5015444-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   KOGA M,  WATANABE T;  US7481984-B1 -- DE19743673-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  STEFANOVSKI T,  ZUR MEGEDE D;  DE19832625-A1   ;  DE19847987-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BACHINGER P,  KEPPELER B,  LAMLA O,  SCHOENROCK B,  SCHUESSLER M,  WAIDELICH D;  DE19534433-C1   DAIMLER-BENZ AG (DAIM)   KOHNKE H J;  DE19720294-C1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  ZUR MEGEDE D;  DE19901301-C1   ;  EP878442-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  ZUR MEGEDE D;  EP906890-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  STEFANOVSKI T,  ZUR MEGEDE D;  EP994068-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BACHINGER P,  KEPPELER B,  LAMLA O,  SCHOENROCK B,  SCHUESSLER M,  WAIDELICH D;  EP974392-A2   ;  JP07126001-A   ;  US5015444-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI)   KOGA M,  WATANABE T;  US5209906-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  POW E G,  LINES D A;  US5270127-A   ISHIKAWAJIMA HARIMA HEAVY IND (ISHI)   KOGA M,  KAWAKAMI S,  MIZUSAWA M;  US5316747-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  TALABA M,  MCNEILLY L,  WATKINS D S,  LINES D A;  US5534328-A   DU PONT DE NEMOURS & CO E I (DUPO)   ASHMEAD J W,  BLAISDELL C T,  JOHNSON M H,  NYQUIST J,  PERROTTO J A,  RYLEY J F;  US6159434-A   MITSUBISHI DENKI KK (MITQ);  ENG ADVANCEMENT ASSOC JAPAN (ENGA-Non-standard)   GONJO Y,  SUGIMOTO T,  SATOH M;  US6447736-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   AUTENRIETH R,  BONEBERG S,  CHRISTEN A,  HEIL D,  STROBEL B,  WIELAND S,  ZUR MEGEDE D;  US6517805-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   SCHUESSLER M,  STEFANOVSKI T,  ZUR MEGEDE D;  US7001575-B2   XCELLSIS GMBH (XCEL-Non-standard);  BALLARD POWER STSTEMS AG (BLRD)   CWIK R,  EBERT A,  LAMLA O,  MOTZET B,  SCHUESSLER M,  STEFANOVSKI T,  TISCHLER A,  WEISSER M