US2004157939-A1 -- US3850844-A   OSAKA KOGYO KK (OSAK-Non-standard);  US4389589-A   BOSCH GMBH ROBERT (BOSC)   SCHULTEK S E;  US4758375-A   BRITISH PETROLEUM CO PLC (BRPE)   BROPHY J H,  TELFORD C D;  US4914070-A   PECHINEY ELECTROMETALLURGIE (PECH)   LEDOUX M J,  GUILLE J L,  HANTZER S,  DUBOTS D;  US4940684-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  IKEDA BUSSAN CO (IKED)   AKIYAMA T,  OKUTANI T,  NAKATA Y,  SUZUKI M;  US5792719-A   CONSORTIUM ELEKTROCHEM IND GMBH (CONE)   EBERLE H,  WAGNER W,  GRUNDEI F,  LIEBISCH E;  US5980843-A   KATATOR AB (KATA-Non-standard)   SILVERSAND A F;  US6087545-A   COUNCIL SCI&IND RES INDIA (COUI)   CHOUDHARY V R,  UPHADE B S,  MULLA S A R;  US20030009943-A1   ;  US6184178-B1   PECHINEY RECH (PECH)   BALUAIS G,  OLLIVIER B;  US6211255-B1   DEN NORSKE STATS OLJESELSKAP AS (DENO)   SCHANKE D,  BERGENE E,  HOLMEN A;  US6254807-B1   UNIV MINNESOTA (MINU)   SCHMIDT L D,  WITT P M;  US6262131-B1   SYNTROLEUM CORP (SYNT-Non-standard)   ARCURI K B,  AGEE K L,  AGEE M A;  US6402989-B1   CONOCO INC (CONO)   GAFFNEY A;  US6409940-B1   CONOCO INC (CONO)   GAFFNEY A M,  CORBIN D R;  WO2004072209-A2 -- EP577879-A1   NE CHEMCAT CORP (NECH-Non-standard)   ITOH T,  KOSAKI Y;  JP55144089-A   OSAKA GAS CO LTD (OSAG)   YAMAUCHI S,  YAMADA M,  OKADA O;  US4758375-A   BRITISH PETROLEUM CO PLC (BRPE)   BROPHY J H,  TELFORD C D;  US4940684-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  IKEDA BUSSAN CO (IKED)   AKIYAMA T,  OKUTANI T,  NAKATA Y,  SUZUKI M;  US20030009943-A1   ;  US6184178-B1   PECHINEY RECH (PECH)   BALUAIS G,  OLLIVIER B;  US6402989-B1   CONOCO INC (CONO)   GAFFNEY A;  US7008560-B2 -- US3850844-A   OSAKA KOGYO KK (OSAK-Non-standard);  US4758375-A   BRITISH PETROLEUM CO PLC (BRPE)   BROPHY J H,  TELFORD C D;  US4914070-A   PECHINEY ELECTROMETALLURGIE (PECH)   LEDOUX M J,  GUILLE J L,  HANTZER S,  DUBOTS D;  US4940684-A   AGENCY OF IND SCI & TECHNOLOGY (AGEN);  IKEDA BUSSAN CO (IKED)   AKIYAMA T,  OKUTANI T,  NAKATA Y,  SUZUKI M;  US5792719-A   CONSORTIUM ELEKTROCHEM IND GMBH (CONE)   EBERLE H,  WAGNER W,  GRUNDEI F,  LIEBISCH E;  US5980843-A   KATATOR AB (KATA-Non-standard)   SILVERSAND A F;  US6087545-A   COUNCIL SCI&IND RES INDIA (COUI)   CHOUDHARY V R,  UPHADE B S,  MULLA S A R;  US20030009943-A1   ;  US6184178-B1   PECHINEY RECH (PECH)   BALUAIS G,  OLLIVIER B;  US6211255-B1   DEN NORSKE STATS OLJESELSKAP AS (DENO)   SCHANKE D,  BERGENE E,  HOLMEN A;  US6254807-B1   UNIV MINNESOTA (MINU)   SCHMIDT L D,  WITT P M;  US6402989-B1   CONOCO INC (CONO)   GAFFNEY A;  US6409940-B1   CONOCO INC (CONO)   GAFFNEY A M,  CORBIN D R;  WO2000062926-A1