US2002179230-A1 -- US3404061-A   ;  US4014730-A   STANDARD OIL CO OHIO (STAH)   SELOVER T B,  BOOS D L,  HACHA T H;  US4234650-A   CONRADTY NUERNBERG GMBH C (CODY);  SCHIEBER F (SCHI-Individual)   SCHIEBER F;  US4416955-A   ENERGY RES CORP (ENER-Non-standard);  SANYO ELECTRIC CO (SAOL)   CHI C V;  US4565749-A   FORD AEROSPACE & COMMUNIC CORP (FORD)   VANOMMERI G,  VAN OMMERING G,  KOEHLER C W;  US4720316-A   ELRING DICHTUNGSWERKE GMBH (ELRI-Non-standard)   RUOFF E;  US4732637-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US4895713-A   UNION CARBIDE CORP (UNIC)   GREINKE R A,  MERCURI R A,  BECK E J;  US5589301-A   NAT STANDARD CO (NACO)   WISSELL H J,  LUNDBERG S A,  EDGINGTON R J,  STEPRO J A;  US5885728-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J;  US5902762-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J;  US5928807-A   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  US6037074-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  GOUGH J J;  US6080503-A   BALLARD POWER SYSTEMS INC (BLRD)   SCHMID O,  EINHART J;  WO200298661-A1 -- EP122150-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US4234650-A   CONRADTY NUERNBERG GMBH C (CODY);  SCHIEBER F (SCHI-Individual)   SCHIEBER F;  US4720316-A   ELRING DICHTUNGSWERKE GMBH (ELRI-Non-standard)   RUOFF E;  EP1420952-A1 -- US4014730-A   STANDARD OIL CO OHIO (STAH)   SELOVER T B,  BOOS D L,  HACHA T H;  US4416955-A   ENERGY RES CORP (ENER-Non-standard);  SANYO ELECTRIC CO (SAOL)   CHI C V;  US4565749-A   FORD AEROSPACE & COMMUNIC CORP (FORD)   VANOMMERI G,  VAN OMMERING G,  KOEHLER C W;  US4732637-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US5589301-A   NAT STANDARD CO (NACO)   WISSELL H J,  LUNDBERG S A,  EDGINGTON R J,  STEPRO J A;  US5885728-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J;  US2004216832-A1 -- US4014730-A   STANDARD OIL CO OHIO (STAH)   SELOVER T B,  BOOS D L,  HACHA T H;  US5589301-A   NAT STANDARD CO (NACO)   WISSELL H J,  LUNDBERG S A,  EDGINGTON R J,  STEPRO J A;  US6037074-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  GOUGH J J;  US6080503-A   BALLARD POWER SYSTEMS INC (BLRD)   SCHMID O,  EINHART J;  US20030198857-A1   ;  US6432336-B1   GRAFTECH INC (GRAF)   MERCURI R A,  CAPP J P,  WARDDRIP M L,  WEBER T W;  US7094311-B2 -- EP122150-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US3404061-A   ;  US4014730-A   STANDARD OIL CO OHIO (STAH)   SELOVER T B,  BOOS D L,  HACHA T H;  US4234650-A   CONRADTY NUERNBERG GMBH C (CODY);  SCHIEBER F (SCHI-Individual)   SCHIEBER F;  US4416955-A   ENERGY RES CORP (ENER-Non-standard);  SANYO ELECTRIC CO (SAOL)   CHI C V;  US4565749-A   FORD AEROSPACE & COMMUNIC CORP (FORD)   VANOMMERI G,  VAN OMMERING G,  KOEHLER C W;  US4720316-A   ELRING DICHTUNGSWERKE GMBH (ELRI-Non-standard)   RUOFF E;  US4732637-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US4895713-A   UNION CARBIDE CORP (UNIC)   GREINKE R A,  MERCURI R A,  BECK E J;  US5589301-A   NAT STANDARD CO (NACO)   WISSELL H J,  LUNDBERG S A,  EDGINGTON R J,  STEPRO J A;  US5885728-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J;  US5902762-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J;  US5928807-A   DAIMLER-BENZ AG (DAIM);  BALLARD POWER SYSTEMS INC (BLRD)   HARTMUT E;  US6037074-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  GOUGH J J;  US6080503-A   BALLARD POWER SYSTEMS INC (BLRD)   SCHMID O,  EINHART J;  US6432336-B1   GRAFTECH INC (GRAF)   MERCURI R A,  CAPP J P,  WARDDRIP M L,  WEBER T W;  EP1420952-B1 -- EP122150-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US4014730-A   STANDARD OIL CO OHIO (STAH)   SELOVER T B,  BOOS D L,  HACHA T H;  US4234650-A   CONRADTY NUERNBERG GMBH C (CODY);  SCHIEBER F (SCHI-Individual)   SCHIEBER F;  US4416955-A   ENERGY RES CORP (ENER-Non-standard);  SANYO ELECTRIC CO (SAOL)   CHI C V;  US4565749-A   FORD AEROSPACE & COMMUNIC CORP (FORD)   VANOMMERI G,  VAN OMMERING G,  KOEHLER C W;  US4720316-A   ELRING DICHTUNGSWERKE GMBH (ELRI-Non-standard)   RUOFF E;  US4732637-A   ENGELHARD CORP (ENGH)   DETTLING C J,  TERRY P L;  US5589301-A   NAT STANDARD CO (NACO)   WISSELL H J,  LUNDBERG S A,  EDGINGTON R J,  STEPRO J A;  US5885728-A   UCAR CARBON TECHNOLOGY CORP (UNIC)   MERCURI R A,  CAPP J P,  GOUGH J J