EP1306632-A1 -- EP269297-A   BRITISH PETROLEUM CO PLC (BRPE)   SMITH D J H,  WOODFIN W T;  EP834046-A1   SHELL INT RES MIJ BV (SHEL)   KLEIN NAGELVOORT R,  VINK K J;  GB2357140-A   KVAERNER OIL & GAS AS (KVAE-Non-standard)   RUMMELHOFF C J;  US2683158-A   ;  US4413153-A   MOBIL OIL CORP (MOBI)   GARWOOD W E,  LEE W;  US6225359-B1   CHEVRON USA INC (CALI)   O'REAR D J,  KIBBY C L,  KRUG R R;  US6248794-B1   ATLANTIC RICHFIELD CO (ATLF)   GIESKES T;  WO1997032172-A1   ;  WO2003036208-A2 -- EP269297-A   BRITISH PETROLEUM CO PLC (BRPE)   SMITH D J H,  WOODFIN W T;  EP834046-A1   SHELL INT RES MIJ BV (SHEL)   KLEIN NAGELVOORT R,  VINK K J;  GB2357140-A   KVAERNER OIL & GAS AS (KVAE-Non-standard)   RUMMELHOFF C J;  US2683158-A   ;  US4413153-A   MOBIL OIL CORP (MOBI)   GARWOOD W E,  LEE W;  US6225359-B1   CHEVRON USA INC (CALI)   O'REAR D J,  KIBBY C L,  KRUG R R;  US6248794-B1   ATLANTIC RICHFIELD CO (ATLF)   GIESKES T;  WO1997032172-A1   ;  AU2002346989-B2 -- GB2357140-A   KVAERNER OIL & GAS AS (KVAE-Non-standard)   RUMMELHOFF C J;  US6225350-B1   VERTEX PHARM INC (VERT)   TUNG R D,  LI B,  SU M S;  US6248794-B1   ATLANTIC RICHFIELD CO (ATLF)   GIESKES T;  WO1997032172-A1   ;  US7451618-B2 -- EP269297-A   BRITISH PETROLEUM CO PLC (BRPE)   SMITH D J H,  WOODFIN W T;  EP497425-A1   SHELL INT RES MIJ BV (SHEL)   NABER J E;  EP583837-A1   SHELL INT RES MIJ BV (SHEL)   REK P J M,  BLANKENSTEIN P;  EP834046-A1   SHELL INT RES MIJ BV (SHEL)   KLEIN NAGELVOORT R,  VINK K J;  GB1572899-A   ;  GB2357140-A   KVAERNER OIL & GAS AS (KVAE-Non-standard)   RUMMELHOFF C J;  US2683158-A   ;  US3203191-A   ;  US4413153-A   MOBIL OIL CORP (MOBI)   GARWOOD W E,  LEE W;  US4456459-A   MOBIL OIL CORP (MOBI)   BRUDIGE V L;  US4504296-A   AIR PROD & CHEM INC (AIRP)   NEWTON C L,  STUBER W G;  US4545795-A   AIR PROD & CHEM INC (AIRP);  GAS PROD & CHEM COR (GASC-Non-standard)   LIU Y N,  PERVIER J W;  US4833170-A   GTG INC (GTGI-Non-standard)   AGEE K L;  US5842357-A   ACRION TECHNOLOGIES INC (ACRI-Non-standard)   BROWN W R,  COOK W J,  SIWAJEK L A;  US5893274-A   SHELL INT RES MIJ BV (SHEL)   KLEIN NAGELVOORT R,  VINK K J;  US20030019788-A1   ;  US6225359-B1   CHEVRON USA INC (CALI)   O'REAR D J,  KIBBY C L,  KRUG R R;  US6248794-B1   ATLANTIC RICHFIELD CO (ATLF)   GIESKES T;  US6289692-B1   PHILLIPS PETROLEUM CO (PHIP)   HOUSER C G,  LEE R,  BAUDAT N;  US6323247-B1   UNIV TEXAS A & M SYSTEM (TEXA)   HALL K R,  BULLIN J A,  EUBANK P T,  AKGERMAN A,  ANTHONY R G;  WO1991015446-A   ;  WO1993006041-A1   ;  WO1994021512-A1   ;  WO1997032172-A1   ;  WO1998011037-A1   ;  WO1998036038-A1   ;  WO1999015483-A1   ;  WO1998012118-A2   ;  MY129192-A -- GB2357140-A   KVAERNER OIL & GAS AS (KVAE-Non-standard)   RUMMELHOFF C J;  US2653158-A   ;  US4413153-A   MOBIL OIL CORP (MOBI)   GARWOOD W E,  LEE W;  US6225359-B1   CHEVRON USA INC (CALI)   O'REAR D J,  KIBBY C L,  KRUG R R;  GC2154-A -- EP269297-A   BRITISH PETROLEUM CO PLC (BRPE)   SMITH D J H,  WOODFIN W T;  EP834046-A1   SHELL INT RES MIJ BV (SHEL)   KLEIN NAGELVOORT R,  VINK K J;  GB2357140-A   KVAERNER OIL & GAS AS (KVAE-Non-standard)   RUMMELHOFF C J;  US2683158-A   ;  US4413153-A   MOBIL OIL CORP (MOBI)   GARWOOD W E,  LEE W;  US6225359-B1   CHEVRON USA INC (CALI)   O'REAR D J,  KIBBY C L,  KRUG R R;  US6248794-B1   ATLANTIC RICHFIELD CO (ATLF)   GIESKES T;  WO1997032172-A1