WO200025379-A1 -- DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  EP831543-A1   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP06132038-A   ;  JP06231787-A   ;  JP08091804-A   ;  JP08185877-A   ;  JP09266002-A   ;  US6572994-B1 -- DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  EP831543-A1   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP03295176-A   ;  JP06132038-A   ;  JP06231787-A   ;  JP08091804-A   ;  JP08185877-A   ;  JP09266002-A   ;  JP10223249-A   TOYOTA JIDOSHA KK (TOYT)   TAKI M;  US4902586-A   INT FUEL CELLS CORP (ITFU)   WERTHEIM R J;  US5482790-A   TOSHIBA KK (TOKE)   YAMADA S,  KANDA M,  YOSHIZAWA H,  SONAI A;  US6015634-A   INT FUEL CELLS CORP (ITFU)   BONVILLE L J,  YANG D;  US6274259-B1   INT FUEL CELLS LLC (ITFU)   GRASSO A P,  CIPPOLLINI N E,  BREAULT R D;  US6312842-B1   INT FUEL CELLS LLC (ITFU)   REISER C A,  VAN DINE L L;  DE19982376-B4 -- DE4329323-C2   TOSHIBA KK (TOKE)   YAMADA S,  KANDA M,  YOSHIZAWA H,  SONAI A;  JP03295176-A   ;  JP06132038-A   ;  JP08185877-A   ;  JP10223249-A   TOYOTA JIDOSHA KK (TOYT)   TAKI M;  JP4476489-B2 -- DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  JP06132038-A   ;  JP06231787-A   ;  JP08091804-A   ;  JP08185877-A   ;  JP09266002-A   ;  JP10074532-A   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP10284108-A   ;  JP63144101-A   ;  JP2009193973-A   TOSHIBA KK (TOKE)   SHIMOTORI S,  HARADA M,  SAITO K,  OGAMI Y,  OHMA A,  SONAI A,  HORI M;  JP4482057-B2 -- DE19802490-A1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard);  BALLARD POWER SYSTEMS INC (BLRD)   SAUSEN E,  RENNEFELD A,  GAULHOFER A;  JP06132038-A   ;  JP06231787-A   ;  JP08091804-A   ;  JP08185877-A   ;  JP09266002-A   ;  JP10074532-A   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  JP10284108-A   ;  JP63144101-A   ;  WO2000025379-A1