US6228520-B1 -- EP275356-A   ;  JP03081959-A   ;  JP05054896-A   ;  JP05325981-A   ;  US3377203-A   ;  US3460991-A   ;  US3522097-A   GENERAL ELECTRIC CO (GENE);  US3533849-A   GENERAL ELECTRIC CO (GENE);  US3573993-A   BOSCH GMBH ROBERT (BOSC);  US4459341-A   US DEPT ENERGY (USAT);  US GOVERNMENT (USGO)   MARCHANT D D,  BATES J L;  US4631238-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RUKA R J;  US4686158-A   MITSUBISHI JUKOGYO KK (MITO)   NISHI T N,  MURAKAMI N,  UEDA K,  SHIRAKAWA S,  NOTOMI A,  HISAMATSU K,  KANEKO S;  US4702971-A   WESTINGHOUSE ELECTRIC CORP (WESE)   ISENBERG A O;  US4749632-A   ARGONNE NAT LAB (USGO);  UNIV CHICAGO (UYCG);  US DEPT ENERGY (USAT)   FLANDERMEY B K,  POEPPEL R B,  DUSEK J T,  ANDERSON H U;  US4767518-A   WESTINGHOUSE ELECTRIC CORP (WESE)   MASKALICK N J;  US4770955-A   STANDARD OIL CO OHIO (STAH)   RUHL R C;  US4789561-A   DORNIER SYSTEM GMBH (DOSY)   SCHMIDBERG R;  US4847173-A   MITSUBISHI DENKI KK (MITQ)   MIYOSHI H,  MITSUNAGA T;  US4851303-A   SRI INT (STRI)   MADOU M J,  OTAGAWA T,  SHER A;  US4885078-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SPENGLER C J,  SINGH P;  US4894297-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SINGH P,  RUKA R J,  GEORGE R A;  US4948680-A   SRI INT (STRI)   MADOU M J,  OTAGAWA T,  SHER A;  US4997725-A   GAS RES INST (GASR-Non-standard)   PUJARE N U,  COOK R L,  SAMMELLS A F;  US5001021-A   INT FUEL CELLS CORP (ITFU)   MARICLE D L,  SWARR T E,  TULLER H L;  US5021304-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RUKA F J,  SPENGLER C J;  US5037525-A   COMMONWEALTH SCI & IND RES ORG (CSIR);  BADWAL S P S (BADW-Individual)   BADWAL S P S;  US5064733-A   GAS RES INST (GASR-Non-standard)   KRIST K,  SAMMELLS A F;  US5080689-A   WESTINGHOUSE ELECTRIC CORP (WESE)   PAL U B,  ISENBERG A O,  FOLSER G R;  US5106706-A   WESTINGHOUSE ELECTRIC CORP (WESE)   SINGH P,  RUKA R J;  US5114803-A   NGK INSULATORS LTD (NIGA)   ISHIHARA T,  FUJITA T,  MISAWA H;  US5122425-A   FUJI ELECTRIC MFG CO LTD (FJIE)   YOSHIDA S,  SHIMIZU H,  MARUYAMA S;  US5143751-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RICHARDS V L,  SINGHAL S C;  US5143801-A   BATTELLE MEMORIAL INST (BATT)   BATES J L;  US5298235-A   ;  US5298341-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  ELANGOVAN S,  HARTVIGSEN J J;  US5308712-A   NGK INSULATORS LTD (NIGA)   SEIKE S,  YAMADA H;  US5330859-A   UNIV CHICAGO (UYCG)   DEES D W,  MCPHEETERS C C,  NELSON P A;  US5340664-A   CERAMATEC INC (CERA-Non-standard)   HARTVIGSEN J J;  US5342704-A   WESTINGHOUSE ELECTRIC CORP (WESE)   VASILOW T R,  RUKA R J,  KUO L J;  US5342705-A   ALLIED-SIGNAL INC (ALLC)   ARMSTRONG T R,  MINH N Q;  US5356730-A   ALLIED-SIGNAL INC (ALLC)   VAN ACKEREN J J,  MINH N Q,  ARMSTRONG T R;  US5366819-A   CERAMATEC INC (CERA-Non-standard)   KHANDKAR A C,  HARTVIGSEN J J;  US5385792-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H,  KOBAYASHI S;  US5403461-A   MASSACHUSETTS INST TECHNOLOGY (MASI)   TULLER H L,  KRAMER S A,  SPEARS M A,  PAL U B;  US5409785-A   EQUOS RES KK (EQUS)   NAKANO N,  AZUMA R,  NAKASHIMA M,  HORIGUCHI M;  US5432023-A   TOSHIBA KK (TOKE)   YAMADA S,  KANDA M,  YAMAMOTO M,  SUZUKI N,  KANAZAWA R,  MOTOMIYA A,  KONDO T,  UCHIDA T,  HASHIMOTO K,  NIKI H,  SASAKI K,  TSURUTA S;  US5432024-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  KAWASAKI S,  MORI K,  ITO Y,  YOSHIOKA K;  US5453330-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  YOSHIOKA K;  US5464654-A   FURUKAWA DENCHI KK (FURB)   MIZUNO T;  US5480738-A   CERAMATEC INC (CERA-Non-standard)   ELANGOVAN S,  KHANDKAR A C,  HARTVIGSEN J J;  US5516597-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RICHARDS V L,  VASILOW T R,  SINGH P;  US5543239-A   ELECTRIC POWER RES INST INC (ELPO)   VIRKAR A V,  FUNG K,  TANNER C W;  US5612149-A   CERAMATEC INC (CERA-Non-standard)   ELANGOVAN S,  HARTVIGSEN J J,  KHANDKAR A C;  US5614127-A   GAS RES INST (GASR-Non-standard)   ELANGOVAN S,  KHANDKAR A C,  MILLIKEN C E;  US5620807-A   DOW CHEM CO (DOWC)   PLOWMAN K R,  SCORTICHINI C L,  WEBB S P,  MUSSELL R D;  US5807642-A   YAMANIS J (YAMA-Individual);  XUE L A (XUEL-Individual);  DONALDSON R (DONA-Individual)   DONALDSON R,  XUE L A,  YAMANIS J;  US5935727-A   DOW CHEM CO (DOWC)   CHIAO Y;  US6054231-A   GAS RES INST (GASR-Non-standard)   VIRKAR A V,  ENGLAND D M