US2004142223-A1 -- US20010046619-A1   ;  US20030082428-A1   ;  US6277339-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BONEBERG S,  BRAUCHLE S;  US6372372-B1   PLUG POWER INC (PLUG-Non-standard)   D'ALEO J M,  CARLSTROM C M,  MARVIN R H,  WALSH M M,  PESCHKE N,  ANTONELLI G D;  US6428921-B1   GENERAL MOTORS CORP (GENK)   GROT S A;  US6670069-B2   ALLEN ENG CO INC (ALLE-Non-standard)   ALLEN J P;  US6686080-B2   FARKASH R H (FARK-Individual);  SKRZYCKE D P (SKRZ-Individual);  DUSETT K (DUSE-Individual);  BUELTE S (BUEL-Individual);  BALLANTINE A W (BALL-Individual);  JONES D O (JONE-Individual)   FARKASH R H,  SKRZYCKE D P,  DUSETT K,  BUELTE S,  BALLANTINE A W,  JONES D O;  WO2004064176-A2 -- DE10049801-A1   TOYOTA JIDOSHA KK (TOYT)   HIRAKATA S,  NISHIDA S,  AOTO A,  BISAKA T,  TANAKA H,  HOTTA Y;  EP1094536-A1   GENERAL MOTORS CORP (GENK)   GROT S A;  JP11097054-A   SANYO ELECTRIC CO LTD (SAOL)   YASUO K,  YOSHIMOTO Y,  HAMADA A,  MIYAKE Y;  US20010046619-A1   ;  US6372372-B1   PLUG POWER INC (PLUG-Non-standard)   D'ALEO J M,  CARLSTROM C M,  MARVIN R H,  WALSH M M,  PESCHKE N,  ANTONELLI G D;  US7291413-B2 -- DE10049801-A1   TOYOTA JIDOSHA KK (TOYT)   HIRAKATA S,  NISHIDA S,  AOTO A,  BISAKA T,  TANAKA H,  HOTTA Y;  EP1094536-A1   GENERAL MOTORS CORP (GENK)   GROT S A;  JP11097054-A   SANYO ELECTRIC CO LTD (SAOL)   YASUO K,  YOSHIMOTO Y,  HAMADA A,  MIYAKE Y;  US20010046619-A1   ;  US20030082428-A1   ;  US6277339-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   BONEBERG S,  BRAUCHLE S;  US6372372-B1   PLUG POWER INC (PLUG-Non-standard)   D'ALEO J M,  CARLSTROM C M,  MARVIN R H,  WALSH M M,  PESCHKE N,  ANTONELLI G D;  US6428921-B1   GENERAL MOTORS CORP (GENK)   GROT S A;  US6670069-B2   ALLEN ENG CO INC (ALLE-Non-standard)   ALLEN J P;  US6686080-B2   FARKASH R H (FARK-Individual);  SKRZYCKE D P (SKRZ-Individual);  DUSETT K (DUSE-Individual);  BUELTE S (BUEL-Individual);  BALLANTINE A W (BALL-Individual);  JONES D O (JONE-Individual)   FARKASH R H,  SKRZYCKE D P,  DUSETT K,  BUELTE S,  BALLANTINE A W,  JONES D O