US2004124308-A1 -- US4923768-A   FUJI ELECTRIC MFG CO LTD (FJIE)   KANEKO H,  NISHIGAKI H;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5482791-A   FUJI ELECTRIC CO LTD (FJIE)   SHINKAI H;  US5811201-A   SOUTHERN CALIFORNIA EDISON CO (SCAL-Non-standard)   SKOWRONSKI M J;  US5967461-A   BOEING NORTH AMERICA INC (BOEI)   FARRINGTON F D;  US6083636-A   ZTEK CORP (ZTEK-Non-standard)   HSU M S;  US20010049035-A1   ;  US20020174659-A1   ;  US6296957-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   GRAAGE K;  EP1441408-A1 -- EP1047144-A1   DELPHI TECHNOLOGIES INC (DELP)   BOTTI J,  GRIEVE M,  MILLER C;  JP60195880-A   HITACHI LTD (HITA)   SUGITA N,  SAKAGUCHI H,  SHIINA K,  SEIKI N,  NOGUCHI Y;  JP63216270-A   ;  US4923768-A   FUJI ELECTRIC MFG CO LTD (FJIE)   KANEKO H,  NISHIGAKI H;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5482791-A   FUJI ELECTRIC CO LTD (FJIE)   SHINKAI H;  US5811201-A   SOUTHERN CALIFORNIA EDISON CO (SCAL-Non-standard)   SKOWRONSKI M J;  US6083636-A   ZTEK CORP (ZTEK-Non-standard)   HSU M S;  US20020174659-A1   ;  WO1999019161-A1   ;  US6834831-B2 -- US4091613-A   NAT AERO & SPACE ADMIN (USAS)   YOUNG R N;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5967461-A   BOEING NORTH AMERICA INC (BOEI)   FARRINGTON F D;  US20010049035-A1   ;  US20020100836-A1   ;  US20020114985-A1   ;  US6296957-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   GRAAGE K;  US6450447-B1   DAIMLERCHRYSLER AG (DAIM)   KONRAD G,  LAMM A;  EP1441408-B1 -- EP1047144-A1   DELPHI TECHNOLOGIES INC (DELP)   BOTTI J,  GRIEVE M,  MILLER C;  JP60195880-A   HITACHI LTD (HITA)   SUGITA N,  SAKAGUCHI H,  SHIINA K,  SEIKI N,  NOGUCHI Y;  JP63216270-A   ;  US4923768-A   FUJI ELECTRIC MFG CO LTD (FJIE)   KANEKO H,  NISHIGAKI H;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5482791-A   FUJI ELECTRIC CO LTD (FJIE)   SHINKAI H;  US5811201-A   SOUTHERN CALIFORNIA EDISON CO (SCAL-Non-standard)   SKOWRONSKI M J;  US6083636-A   ZTEK CORP (ZTEK-Non-standard)   HSU M S;  US20020174659-A1   ;  WO1999019161-A1