WO9940643-A1 -- US4764488-A   KOBE STEEL LTD (KOBM);  US5069987-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5273837-A   CORNING INC (CORG)   ST JULIEN D J,  FABER M K,  AITKEN B G,  KETCHAM T D;  US5312700-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5332483-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5624542-A   GAS RES INST (GASR-Non-standard)   KRIST K,  TAYLOR D M,  JOSHI A V,  SHEN Y,  VIRKAR A V,  BOETTCHER M J;  US6074771-A -- US4659448-A   IGR ENTERPRISES (IGRE-Non-standard)   GORDON A Z;  US4764488-A   KOBE STEEL LTD (KOBM);  US4867902-A   Z-GARD INC (ZCAR-Non-standard)   RUSSELL D H;  US5069987-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5200279-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  SHOCKLING L A,  GEORGE R A;  US5209989-A   NGK INSULATORS LTD (NIGA)   ISHIHARA T,  MISAWA H,  YAMADA S;  US5234722-A   NGK INSULATORS LTD (NIGA)   ITO S,  OKUMURA K,  YOSHIOKA K;  US5238754-A   SANYO ELECTRIC CO (SAOL)   YASUO T,  AKIYAMA Y,  ISHIDA N,  MURAKAMI S,  SAITOH T;  US5256499-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q,  STILLWAGON T L;  US5258240-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  DI CROCE A M;  US5261944-A   ENIRICERCHE SPA (ENIE);  SNAM SPA (SNAM)   LOCKHART T P,  PIRO G,  GAGLIARDI F,  ZANIBELLI L;  US5270129-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5273837-A   CORNING INC (CORG)   ST JULIEN D J,  FABER M K,  AITKEN B G,  KETCHAM T D;  US5279906-A   YOSHIDA KOGYO KK (YOSI)   YOSHIMURA T,  SATO M,  ARAI T;  US5281490-A   NGK INSULATORS LTD (NIGA)   NISHIOKA M,  YAMADA H;  US5286580-A   OSAKA GAS CO LTD (OSAG)   IPPOMMATSU M,  SUZUKI M,  SASAKI H,  OTOSHI S,  OHNISHI H;  US5290642-A   ALLIED-SIGNAL INC (ALLC)   MINH N O,  HORNE C R;  US5292599-A   NGK INSULATORS LTD (NIGA)   SOMA T,  KAWASAKI S,  YOSHIOKA K;  US5306411-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  FRYE J G,  KLIEWER W R,  MAZANEC T J;  US5312700-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5326650-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5330859-A   UNIV CHICAGO (UYCG)   DEES D W,  MCPHEETERS C C,  NELSON P A;  US5332483-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5336569-A   NGK INSULATORS LTD (NIGA)   MISAWA H,  SEIKE S;  US5342703-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5354626-A   MURATA MFG CO LTD (MURA)   KOBAYASHI S,  SHIRATORI A,  TAKAGI H,  SAKABE Y;  US5358735-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  OKUMURA K,  YOSHIOKA K;  US5368951-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H;  US5372895-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T,  YOSHIMURA T;  US5376468-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5385792-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H,  KOBAYASHI S;  US5405712-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5418081-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  OKUMURA K,  YOSHIOKA K;  US5429644-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5445902-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  KAWASAKI S,  YOSHIOKA K;  US5453330-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  YOSHIOKA K;  US5460897-A   ALLIED-SIGNAL INC (ALLC)   GIBSON R,  MACKNIGHT A;  US5474800-A   TOKYO GAS CO LTD (TOLG)   MATSUZAKI Y;  US5480739-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S;  US5486428-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5500306-A   ZTEK CORP (ZTEK-Non-standard)   WEI I W,  HSU M S;  US5500307-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENT FOUND (PETR-Non-standard)   ANZAI I,  MATSUOKA S,  UEHARA J;  US5514353-A   SAMMER CORP A F (SAMM-Non-standard)   ADLHART O J;  US5518830-A   UNIV PENNSYLVANIA (UPEN)   WORRELL W,  HAN P,  UCHIMOTO Y;  US5527633-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5531019-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5541014-A   US DEPT ENERGY (USAT)   SUDHOFF F A,  WILLIAMS M C,  MICHELI P L;  US5551955-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5554454-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY J M,  BRANDON N P,  BROWNELL J B;  US5573867-A   WESTINGHOUSE ELECTRIC CORP (WESE)   BASEL R A,  ANTENUCCI A B,  ZAFRED P R,  GILLETT J E,  DEDERER J T;  US5585203-A   MURATA MFG CO LTD (MURA)   CHIKAGAWA O,  TAKAGI H,  IHA M;  US5589017-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q;  US5591537-A   RISOE FORSKNINGSCENTER (RISO-Non-standard)   BAGGER C,  KINDL B,  MOGENSEN M;  US5595833-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5614127-A   GAS RES INST (GASR-Non-standard)   ELANGOVAN S,  KHANDKAR A C,  MILLIKEN C E;  US5624542-A   GAS RES INST (GASR-Non-standard)   KRIST K,  TAYLOR D M,  JOSHI A V,  SHEN Y,  VIRKAR A V,  BOETTCHER M J;  US1260-H   ;  EP1051767-A1 -- EP668622-A1   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY J M,  BRANDON N P,  BROWNELL J B;  WO1992000934-A   ;  WO1999029930-A1   ;  US6703153-B1 -- US4659448-A   IGR ENTERPRISES (IGRE-Non-standard)   GORDON A Z;  US4789561-A   DORNIER SYSTEM GMBH (DOSY)   SCHMIDBERG R;  US5069987-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5200279-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  SHOCKLING L A,  GEORGE R A;  US5209989-A   NGK INSULATORS LTD (NIGA)   ISHIHARA T,  MISAWA H,  YAMADA S;  US5234722-A   NGK INSULATORS LTD (NIGA)   ITO S,  OKUMURA K,  YOSHIOKA K;  US5238754-A   SANYO ELECTRIC CO (SAOL)   YASUO T,  AKIYAMA Y,  ISHIDA N,  MURAKAMI S,  SAITOH T;  US5256499-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q,  STILLWAGON T L;  US5258240-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  DI CROCE A M;  US5261944-A   ENIRICERCHE SPA (ENIE);  SNAM SPA (SNAM)   LOCKHART T P,  PIRO G,  GAGLIARDI F,  ZANIBELLI L;  US5270129-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5279906-A   YOSHIDA KOGYO KK (YOSI)   YOSHIMURA T,  SATO M,  ARAI T;  US5281490-A   NGK INSULATORS LTD (NIGA)   NISHIOKA M,  YAMADA H;  US5286580-A   OSAKA GAS CO LTD (OSAG)   IPPOMMATSU M,  SUZUKI M,  SASAKI H,  OTOSHI S,  OHNISHI H;  US5290642-A   ALLIED-SIGNAL INC (ALLC)   MINH N O,  HORNE C R;  US5292599-A   NGK INSULATORS LTD (NIGA)   SOMA T,  KAWASAKI S,  YOSHIOKA K;  US5306411-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  FRYE J G,  KLIEWER W R,  MAZANEC T J;  US5312700-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5326650-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5330859-A   UNIV CHICAGO (UYCG)   DEES D W,  MCPHEETERS C C,  NELSON P A;  US5336569-A   NGK INSULATORS LTD (NIGA)   MISAWA H,  SEIKE S;  US5342703-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5354626-A   MURATA MFG CO LTD (MURA)   KOBAYASHI S,  SHIRATORI A,  TAKAGI H,  SAKABE Y;  US5358735-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  OKUMURA K,  YOSHIOKA K;  US5368951-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H;  US5372895-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T,  YOSHIMURA T;  US5376468-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5385792-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H,  KOBAYASHI S;  US5405712-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T;  US5409371-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5418081-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  OKUMURA K,  YOSHIOKA K;  US5429644-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5445902-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  KAWASAKI S,  YOSHIOKA K;  US5453330-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  YOSHIOKA K;  US5460897-A   ALLIED-SIGNAL INC (ALLC)   GIBSON R,  MACKNIGHT A;  US5474800-A   TOKYO GAS CO LTD (TOLG)   MATSUZAKI Y;  US5480739-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S;  US5486428-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5496655-A   LOCKHEED IDAHO TECHNOLOGIES CO (LOCK)   LESSING P A;  US5500306-A   ZTEK CORP (ZTEK-Non-standard)   WEI I W,  HSU M S;  US5500307-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENT FOUND (PETR-Non-standard)   ANZAI I,  MATSUOKA S,  UEHARA J;  US5518830-A   UNIV PENNSYLVANIA (UPEN)   WORRELL W,  HAN P,  UCHIMOTO Y;  US5527633-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5531019-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5541014-A   US DEPT ENERGY (USAT)   SUDHOFF F A,  WILLIAMS M C,  MICHELI P L;  US5551955-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5554454-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY J M,  BRANDON N P,  BROWNELL J B;  US5573867-A   WESTINGHOUSE ELECTRIC CORP (WESE)   BASEL R A,  ANTENUCCI A B,  ZAFRED P R,  GILLETT J E,  DEDERER J T;  US5585203-A   MURATA MFG CO LTD (MURA)   CHIKAGAWA O,  TAKAGI H,  IHA M;  US5589017-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q;  US5591537-A   RISOE FORSKNINGSCENTER (RISO-Non-standard)   BAGGER C,  KINDL B,  MOGENSEN M;  US5595833-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5614127-A   GAS RES INST (GASR-Non-standard)   ELANGOVAN S,  KHANDKAR A C,  MILLIKEN C E;  US6074771-A   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R S,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M,  CHAWLA S;  US1260-H   ;  WO1994006545-A1   ;  WO1997026684-A1   ;  EP1051767-B1 -- EP668622-A1   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY J M,  BRANDON N P,  BROWNELL J B;  US4764488-A   KOBE STEEL LTD (KOBM);  US5069987-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5273837-A   CORNING INC (CORG)   ST JULIEN D J,  FABER M K,  AITKEN B G,  KETCHAM T D;  US5312700-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5332483-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5624542-A   GAS RES INST (GASR-Non-standard)   KRIST K,  TAYLOR D M,  JOSHI A V,  SHEN Y,  VIRKAR A V,  BOETTCHER M J;  WO1992000934-A   ;  WO1999029930-A1   ;  US2009294021-A1 -- US555444-A   ;  US4528083-A   UNITED TECHNOLOGIES CORP (UNAC)   LACONTI A B,  ENOS J E,  DAMPSEY R M,  FRAGALA A R;  US4659448-A   IGR ENTERPRISES (IGRE-Non-standard)   GORDON A Z;  US4764488-A   KOBE STEEL LTD (KOBM);  US4789561-A   DORNIER SYSTEM GMBH (DOSY)   SCHMIDBERG R;  US4867902-A   Z-GARD INC (ZCAR-Non-standard)   RUSSELL D H;  US4900406-A   HOOGOVENS GROEP BV (KNHS)   JANSSEN L J J,  VANHAASTRE G C;  US5069987-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5200279-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  SHOCKLING L A,  GEORGE R A;  US5209989-A   NGK INSULATORS LTD (NIGA)   ISHIHARA T,  MISAWA H,  YAMADA S;  US5234722-A   NGK INSULATORS LTD (NIGA)   ITO S,  OKUMURA K,  YOSHIOKA K;  US5238754-A   SANYO ELECTRIC CO (SAOL)   YASUO T,  AKIYAMA Y,  ISHIDA N,  MURAKAMI S,  SAITOH T;  US5256499-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q,  STILLWAGON T L;  US5258240-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  DI CROCE A M;  US5261944-A   ENIRICERCHE SPA (ENIE);  SNAM SPA (SNAM)   LOCKHART T P,  PIRO G,  GAGLIARDI F,  ZANIBELLI L;  US5270129-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5273837-A   CORNING INC (CORG)   ST JULIEN D J,  FABER M K,  AITKEN B G,  KETCHAM T D;  US5279906-A   YOSHIDA KOGYO KK (YOSI)   YOSHIMURA T,  SATO M,  ARAI T;  US5281490-A   NGK INSULATORS LTD (NIGA)   NISHIOKA M,  YAMADA H;  US5286580-A   OSAKA GAS CO LTD (OSAG)   IPPOMMATSU M,  SUZUKI M,  SASAKI H,  OTOSHI S,  OHNISHI H;  US5290642-A   ALLIED-SIGNAL INC (ALLC)   MINH N O,  HORNE C R;  US5292599-A   NGK INSULATORS LTD (NIGA)   SOMA T,  KAWASAKI S,  YOSHIOKA K;  US5306411-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  FRYE J G,  KLIEWER W R,  MAZANEC T J;  US5312700-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5326650-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5330859-A   UNIV CHICAGO (UYCG)   DEES D W,  MCPHEETERS C C,  NELSON P A;  US5332483-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5336569-A   NGK INSULATORS LTD (NIGA)   MISAWA H,  SEIKE S;  US5342703-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5354626-A   MURATA MFG CO LTD (MURA)   KOBAYASHI S,  SHIRATORI A,  TAKAGI H,  SAKABE Y;  US5358735-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  OKUMURA K,  YOSHIOKA K;  US5368951-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H;  US5372895-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T,  YOSHIMURA T;  US5376468-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5385792-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H,  KOBAYASHI S;  US5405712-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T;  US5409371-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5418081-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  OKUMURA K,  YOSHIOKA K;  US5429644-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5445902-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  KAWASAKI S,  YOSHIOKA K;  US5453330-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  YOSHIOKA K;  US5460897-A   ALLIED-SIGNAL INC (ALLC)   GIBSON R,  MACKNIGHT A;  US5474800-A   TOKYO GAS CO LTD (TOLG)   MATSUZAKI Y;  US5480739-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S;  US5486428-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5496655-A   LOCKHEED IDAHO TECHNOLOGIES CO (LOCK)   LESSING P A;  US5500306-A   ZTEK CORP (ZTEK-Non-standard)   WEI I W,  HSU M S;  US5500307-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENT FOUND (PETR-Non-standard)   ANZAI I,  MATSUOKA S,  UEHARA J;  US5514353-A   SAMMER CORP A F (SAMM-Non-standard)   ADLHART O J;  US5518830-A   UNIV PENNSYLVANIA (UPEN)   WORRELL W,  HAN P,  UCHIMOTO Y;  US5527633-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5531019-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5541014-A   US DEPT ENERGY (USAT)   SUDHOFF F A,  WILLIAMS M C,  MICHELI P L;  US5551955-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5573867-A   WESTINGHOUSE ELECTRIC CORP (WESE)   BASEL R A,  ANTENUCCI A B,  ZAFRED P R,  GILLETT J E,  DEDERER J T;  US5585203-A   MURATA MFG CO LTD (MURA)   CHIKAGAWA O,  TAKAGI H,  IHA M;  US5589017-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q;  US5591537-A   RISOE FORSKNINGSCENTER (RISO-Non-standard)   BAGGER C,  KINDL B,  MOGENSEN M;  US5595833-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5614127-A   GAS RES INST (GASR-Non-standard)   ELANGOVAN S,  KHANDKAR A C,  MILLIKEN C E;  US5624542-A   GAS RES INST (GASR-Non-standard)   KRIST K,  TAYLOR D M,  JOSHI A V,  SHEN Y,  VIRKAR A V,  BOETTCHER M J;  US6074771-A   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R S,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M,  CHAWLA S;  US6132573-A   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M;  US6496655-B1   EASTMAN KODAK CO (EAST)   MALLOY DESORMEAUX S G;  US6592965-B1   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US6703153-B1   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R S,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M,  CHAWLA S;  US7687173-B2 -- EP668622-A1   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY J M,  BRANDON N P,  BROWNELL J B;  US4528083-A   UNITED TECHNOLOGIES CORP (UNAC)   LACONTI A B,  ENOS J E,  DAMPSEY R M,  FRAGALA A R;  US4659448-A   IGR ENTERPRISES (IGRE-Non-standard)   GORDON A Z;  US4764488-A   KOBE STEEL LTD (KOBM);  US4789561-A   DORNIER SYSTEM GMBH (DOSY)   SCHMIDBERG R;  US4867902-A   Z-GARD INC (ZCAR-Non-standard)   RUSSELL D H;  US4900406-A   HOOGOVENS GROEP BV (KNHS)   JANSSEN L J J,  VANHAASTRE G C;  US5069987-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5200279-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  SHOCKLING L A,  GEORGE R A;  US5209989-A   NGK INSULATORS LTD (NIGA)   ISHIHARA T,  MISAWA H,  YAMADA S;  US5234722-A   NGK INSULATORS LTD (NIGA)   ITO S,  OKUMURA K,  YOSHIOKA K;  US5238754-A   SANYO ELECTRIC CO (SAOL)   YASUO T,  AKIYAMA Y,  ISHIDA N,  MURAKAMI S,  SAITOH T;  US5256499-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q,  STILLWAGON T L;  US5258240-A   WESTINGHOUSE ELECTRIC CORP (WESE)   DRAPER R,  DI CROCE A M;  US5261944-A   ENIRICERCHE SPA (ENIE);  SNAM SPA (SNAM)   LOCKHART T P,  PIRO G,  GAGLIARDI F,  ZANIBELLI L;  US5270129-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5273837-A   CORNING INC (CORG)   ST JULIEN D J,  FABER M K,  AITKEN B G,  KETCHAM T D;  US5279906-A   YOSHIDA KOGYO KK (YOSI)   YOSHIMURA T,  SATO M,  ARAI T;  US5281490-A   NGK INSULATORS LTD (NIGA)   NISHIOKA M,  YAMADA H;  US5286580-A   OSAKA GAS CO LTD (OSAG)   IPPOMMATSU M,  SUZUKI M,  SASAKI H,  OTOSHI S,  OHNISHI H;  US5290642-A   ALLIED-SIGNAL INC (ALLC)   MINH N O,  HORNE C R;  US5292599-A   NGK INSULATORS LTD (NIGA)   SOMA T,  KAWASAKI S,  YOSHIOKA K;  US5306411-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  FRYE J G,  KLIEWER W R,  MAZANEC T J;  US5312700-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5326650-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5330859-A   UNIV CHICAGO (UYCG)   DEES D W,  MCPHEETERS C C,  NELSON P A;  US5332483-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5336569-A   NGK INSULATORS LTD (NIGA)   MISAWA H,  SEIKE S;  US5342703-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5354626-A   MURATA MFG CO LTD (MURA)   KOBAYASHI S,  SHIRATORI A,  TAKAGI H,  SAKABE Y;  US5358735-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  OKUMURA K,  YOSHIOKA K;  US5368951-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H;  US5372895-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T,  YOSHIMURA T;  US5376468-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5385792-A   MURATA MFG CO LTD (MURA)   SHIRATORI A,  TAKAGI H,  KOBAYASHI S;  US5405712-A   YOSHIDA KOGYO KK (YOSI)   SATO M,  ARAI T;  US5409371-A   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US5413879-A   WESTINGHOUSE ELECTRIC CORP (WESE)   LINDER J M,  DOWDY T E,  LUNDBERG W L,  DOMERACKI W F;  US5418081-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  OKUMURA K,  YOSHIOKA K;  US5429644-A   YOSHIDA KOGYO KK (YOSI)   ARAI T,  SATO M,  YOSHIMURA T,  TAMURA M;  US5445902-A   NGK INSULATORS LTD (NIGA)   SOMA T,  TAKAHASHI T,  KAWASAKI S,  YOSHIOKA K;  US5453330-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  YOSHIOKA K;  US5460897-A   ALLIED-SIGNAL INC (ALLC)   GIBSON R,  MACKNIGHT A;  US5474800-A   TOKYO GAS CO LTD (TOLG)   MATSUZAKI Y;  US5480739-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S;  US5486428-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5496655-A   LOCKHEED IDAHO TECHNOLOGIES CO (LOCK)   LESSING P A;  US5500306-A   ZTEK CORP (ZTEK-Non-standard)   WEI I W,  HSU M S;  US5500307-A   NIPPON OIL KK (NIOC);  PETROLEUM ENERGY CENT FOUND (PETR-Non-standard)   ANZAI I,  MATSUOKA S,  UEHARA J;  US5514353-A   SAMMER CORP A F (SAMM-Non-standard)   ADLHART O J;  US5518830-A   UNIV PENNSYLVANIA (UPEN)   WORRELL W,  HAN P,  UCHIMOTO Y;  US5527633-A   NGK INSULATORS LTD (NIGA)   KAWASAKI S,  ITO S,  YOSHIOKA K;  US5531019-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5541014-A   US DEPT ENERGY (USAT)   SUDHOFF F A,  WILLIAMS M C,  MICHELI P L;  US5551955-A   MURATA MFG CO LTD (MURA)   TAIRA H,  IHA M,  TAKAGI H;  US5554454-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY J M,  BRANDON N P,  BROWNELL J B;  US5573867-A   WESTINGHOUSE ELECTRIC CORP (WESE)   BASEL R A,  ANTENUCCI A B,  ZAFRED P R,  GILLETT J E,  DEDERER J T;  US5585203-A   MURATA MFG CO LTD (MURA)   CHIKAGAWA O,  TAKAGI H,  IHA M;  US5589017-A   ALLIED-SIGNAL INC (ALLC)   MINH N Q;  US5591537-A   RISOE FORSKNINGSCENTER (RISO-Non-standard)   BAGGER C,  KINDL B,  MOGENSEN M;  US5595833-A   ROLLS ROYCE PLC (RORO)   GARDNER F J,  DAY M J,  BRANDON N P,  BROWNELL J B;  US5614127-A   GAS RES INST (GASR-Non-standard)   ELANGOVAN S,  KHANDKAR A C,  MILLIKEN C E;  US5624542-A   GAS RES INST (GASR-Non-standard)   KRIST K,  TAYLOR D M,  JOSHI A V,  SHEN Y,  VIRKAR A V,  BOETTCHER M J;  US6074771-A   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R S,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M,  CHAWLA S;  US6132573-A   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M;  US6496655-B1   EASTMAN KODAK CO (EAST)   MALLOY DESORMEAUX S G;  US6592965-B1   IGR ENTERPRISES INC (IGRI-Non-standard)   GORDON A Z;  US6703153-B1   IGR ENTERPRISES INC (IGRI-Non-standard)   CUBUKCU E,  DAHAR S,  DODEJA R S,  GORDON A Z,  KALYNCHUK D G,  PRINCE T S,  SOLTESZ J M,  WAITE M,  CHAWLA S;  US1260-H   ;  WO1994006545-A1   ;  WO1994026684-A1