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 US5617741-A   AIR PROD & CHEM INC (AIRP)   MCNEIL B A,  EVANS M H;  US6070429-A   PHILLIPS PETROLEUM CO (PHIP)   LOW W R,  YAO J;  US20030136146-A1   ;  US20030177786-A1   ;  US20040103687-A1   ;  US20040231359-A1   ;  US6199403-B1   EXXONMOBIL UPSTREAM RES CO (ESSO)   COLE E T,  STONE B T;  US6449984-B1   TECHNIP (TECH-Non-standard)   PARADOWSKI H;  US6763680-B2   INST FRANCAIS DU PETROLE (INSF)   FISCHER B,  MARTIN P Y,  ROJEY A;  WO1993008436-A1   ;  WO2000058674-A1   ;  WO2002088612-A1   ;  WO2003004951-A1   TECHNIP (TECH-Non-standard)   PARADOWSKI H;  WO2003062724-A1   FISCHER-CALDERON E (FISC-Individual);  BRISCOE M D (BRIS-Individual);  GRADASSI M J (GRAD-Individual);  SAWCHUK J H (SAWC-Individual)   FISCHER-CALDERON E,  BRISCOE M D,  GRADASSI M J,  SAWCHUK J H;  WO2004104143-A1   BROSTOW A A (BROS-Individual);  ROBERTS M J (ROBE-Individual);  SPILSBURY C G (SPIL-Individual)   BROSTOW A A,  ROBERTS M J,  SPILSBURY C G;  WO2005061978-A1   BP EXPLORATION OPERATING CO LTD (BRPE)   JOSTEN M,  REDFORD A; 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