WO9313566-A1 -- EP110517-A   ENGELHARD CORP (ENGH)   FEIGENBAUM H,  PUDICK S;  FR1310419-A   ;  FR1518333-A   ;  FR2436508-A   ELECTROCHEM ENERGIECONVERSIE (ELEC-Non-standard)   DORRESTIJN A;  GB1100600-A   ;  GB2236012-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GRANATA S J,  WOODE B M,  DUNYAK T J;  US3511906-A   VARTA AG HAGEN (HAGE);  US3533852-A   CONSOLIDATED NATURAL GAS (CON-Non-standard);  US4978591-A   US DEPT ENERGY (USAT);  WESTINGHOUSE ELECTRIC CORP (WESE)   WRIGHT M K;  US5523175-A -- EP110517-A   ENGELHARD CORP (ENGH)   FEIGENBAUM H,  PUDICK S;  FR1310419-A   ;  FR1518333-A   ;  FR2464736-A   ;  GB1100600-A   ;  GB2236012-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GRANATA S J,  WOODE B M,  DUNYAK T J;  US3511906-A   VARTA AG HAGEN (HAGE);  US3515595-A   GENERAL ELECTRIC CO (GENE);  US3533852-A   CONSOLIDATED NATURAL GAS (CON-Non-standard);  US3573104-A   ;  US3607418-A   BOSCH R (BOSC);  US3846176-A   SIEMENS AG (SIEI);  US3867206-A   ;  US4225654-A   FUJI ELECTRIC CO LTD (FJIE)   TAJIMA H,  ARAI T;  US4259389-A   ;  US4346150-A   EXXON RES & ENG CO (ESSO)   BELLOWS R J,  GRIMES P G,  NEWBY K R,  EINSTEIN H,  TSIEN E;  US4374185-A   UNITED TECHNOLOGIES CORP (UNAC)   POWERS J,  TROCCIOLA J C,  MARTIN R G;  US4374906-A   UNITED TECHNOLOGIES CORP (UNAC);  US4485157-A   ;  US4543303-A   GENERAL ELECTRIC CO (GENE);  UNITED TECHNOLOGIES CORP (UNAC)   DANTOWITZ P P,  BALKO E N,  MCELROY J F;  US4555324-A   TOSHIBA KK (TOKE)   UENO M,  SHIROGAMI T,  MIKOGAMI Y;  US4579788-A   INST GAS TECHNOLOGY (IGTE);  US4640876-A   OCCIDENTAL CHEM CORP (OCCI)   WARZAWSKI B,  FAUVEL P;  US4652502-A   INT FUEL CELLS INC (ITFU)   BREAULT R D,  DONAHUE J;  US4728533-A   ENGELHARD CORP (ENGH)   FEIGENBAUM H,  PUDICK S;  US4743518-A   INT FUEL CELLS CORP (ITFU)   ROMANOWSKI W E;  US4758481-A   OCCI CHEM CORP (OCCI);  FAUVEL P (FAUV-Individual)   FAUVEL P;  US4774154-A   INT FUEL CELLS CORP (ITFU)   SINGELYN J D,  GELTING R,  MIENTEK A P;  US4781727-A   MITSUBISHI DENKI KK (MITQ)   MITSUDA K,  SHIOTA H,  TAKAHASHI K,  SHIMAMOTO K,  MURAHASHI T,  HIRATA I;  US4786568-A   INT FUEL CELLS CORP (ITFU)   ELMORE D E,  ROETHLEIN R J;  US4824741-A   INT FUEL CELLS CORP (ITFU)   KUNZ H R;  US4826742-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US4978591-A   US DEPT ENERGY (USAT);  WESTINGHOUSE ELECTRIC CORP (WESE)   WRIGHT M K;  US5096786-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GRANATA S J,  WOODE B M,  DUNYAK T J;  US5264299-A   INT FUEL CELLS CORP (ITFU)   KRASIJ M,  WATSON P R