WO2006061390-A1 -- EP1452505-A1   NIPPON STEEL CORP (YAWA);  TEIKOKU OIL CO LTD (TOIL)   SAKON T,  ITO W,  DOHNOMAE H,  NAGAI T,  KURIMURA H,  KAGANOI S,  SUZUKI Y,  ITO T;  US20020106495-A1   ;  US20040183055-A1   ;  US6368383-B1   ;  FR2879185-A1 -- US20020106495-A1   ;  US20040183055-A1   ;  US2006127656-A1 -- US4791079-A   ARCO CHEM CO (ATLF)   HAZBUN E A;  US4827071-A   ARCO CHEM TECHNOLOGY INC (ATLF)   HAZBUN E A;  US5240480-A   AIR PROD & CHEM INC (AIRP)   THOROGOOD R M,  SRINIVASAN R,  YEE T F,  DRAKE M P;  US5306411-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  FRYE J G,  KLIEWER W R,  MAZANEC T J;  US5391440-A   WESTINGHOUSE ELECTRIC CORP (WESE)   KUO L J H,  VORA S D;  US5439706-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N,  FINE S M,  MAKITKA A,  RICHARDS R E,  SCHAFFER L E;  US5534471-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N;  US5569633-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N;  US5648304-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  MAZANEC T J;  US5683797-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N,  FINE S M,  MAKITKA A,  RICHARDS R E,  SCHAFFER L E;  US5911860-A   PRAXAIR TECHNOLOGY INC (PRAX)   CHEN C C,  PRASAD R,  GOTTZMAN C F;  US5938822-A   PRAXAIR TECHNOLOGY INC (PRAX)   CHEN C C,  PRASAD R,  GOTTZMAN C F;  US6139810-A   PRAXAIR TECHNOLOGY INC (PRAX);  STANDARD OIL CO OHIO (STAH)   GOTTZMANN C F,  PRASAD R,  SCHWARTZ J M,  BERGSTEN V E,  WHITE J E,  MAZANEC T J,  CABLE T L,  FAGLEY J C;  US6165431-A   ELTRON RES INC (ELTR-Non-standard)   MACKAY R,  SCHWARTZ M,  SAMMELLS A F;  US20020106495-A1   ;  US20040183055-A1   ;  US20040214069-A1   ;  US20040242413-A1   ;  US20050061663-A1   ;  US20050119761-A1   ;  US6214757-B1   ELTRON RES INC (ELTR-Non-standard)   SCHWARTZ M,  WHITE J H,  SAMMELLS A F;  US6368383-B1   ;  US6409940-B1   CONOCO INC (CONO)   GAFFNEY A M,  CORBIN D R;  US6565632-B1   PRAXAIR TECHNOLOGY INC (PRAX)   VAN HASSEL B A,  PRASAD R,  CHEN J,  LANE J;  US6638575-B1   PRAXAIR TECHNOLOGY INC (PRAX)   CHEN J C,  CHEN H,  PRASAD R,  WHICHARD G;  US6514314-B2   SIRMAN J D (SIRM-Individual);  CHEN J C (CHEN-Individual)   SIRMAN J D,  CHEN J C;  EP1827663-B1 -- EP1452505-A1   NIPPON STEEL CORP (YAWA);  TEIKOKU OIL CO LTD (TOIL)   SAKON T,  ITO W,  DOHNOMAE H,  NAGAI T,  KURIMURA H,  KAGANOI S,  SUZUKI Y,  ITO T;  US20020106495-A1   ;  US20040183055-A1   ;  US6368383-B1