FR2845824-A1 -- JP02086070-A   ;  US3479224-A   ;  US4037024-A   US SEC OF NAVY (USNA)   LANDAU M B;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5798186-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  WO2004034495-A1 -- JP02086070-A   ;  US4037024-A   US SEC OF NAVY (USNA)   LANDAU M B;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5798186-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  US2005202300-A1 -- US3014976-A   ;  US3479224-A   ;  US4037024-A   US SEC OF NAVY (USNA)   LANDAU M B;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5798186-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  US20010010874-A1   ;  US20040229087-A1   ;  US6562498-B1   PLUG POWER INC (PLUG-Non-standard)   WALSH M M;  JP4694203-B2 -- JP11214022-A   ;  JP2000215902-A   ;  JP2000243417-A   ;  JP2000512068-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  JP2001006704-A   ;  US8029938-B2 -- JP02086070-A   ;  JP11214022-A   ;  JP2000215902-A   ;  JP2000243417-A   ;  JP2001006704-A   ;  JP2002246049-A   ;  JP2000512068-W   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  US3014976-A   ;  US3479224-A   ;  US4037024-A   US SEC OF NAVY (USNA)   LANDAU M B;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5798186-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G;  US20010010874-A1   ;  US20040229087-A1   ;  US6562498-B1   PLUG POWER INC (PLUG-Non-standard)   WALSH M M;  EP1559159-B1 -- US3479224-A   ;  US4037024-A   US SEC OF NAVY (USNA)   LANDAU M B;  US5200278-A   BALLARD POWER SYSTEMS INC (BLRD)   WATKINS D S,  DIRCKS K W,  EPPS D G,  GORBELL B N,  MERRITT R D;  US5798186-A   BALLARD POWER SYSTEMS INC (BLRD);  DAIMLER-BENZ AG (DAIM)   FLETCHER N J,  BOEHM G A,  POW E G