;  US6962061-B2 -- EP1205721-A1   AIR PROD & CHEM INC (AIRP)   ALLAM R J,  COTTON R J,  DILLON I J L,  O'CONNOR D P;  US2209534-A   ;  US2494120-A   ;  US2900797-A   ;  US2937503-A   ;  US3132016-A   ;  US3213631-A   ;  US3236057-A   ;  US3292380-A   ;  US3315475-A   ;  US3323315-A   ;  US3349020-A   ;  US3416324-A   ;  US3448587-A   ;  US3487652-A   PHILLIPS PETROLEUM CO (PHIP);  US3548606-A   PHILLIPS PETROLEUM CO (PHIP);  US3596473-A   MESSER GRIESHEIM GMBH (MESG);  US3608323-A   CANADIAN LIQUID AIR LTD (AIRL);  US3628340-A   HYDROCARBON RES INC (HYDS);  US3677019-A   UNION CARBIDE CORP (UNIC);  US3724225-A   ESSO RES & ENG CO (ESSO);  US3735600-A   GULF RES & DEV CO (GULF);  US4001116-A   CHICAGO BRIDGE & IRON CO (CBRI);  US4120911-A   CHEVRON RES CO (CALI)   DAVIDSON J M;  US4128410-A   GULF OIL CORP (GULO)   BACON K H;  US4187689-A   CHICAGO BRIDGE & IRON CO (CBRI)   SELCUKOGLU Y A,  HUSSAIN M,  HANKE C C,  HUSAIN M;  US4318723-A   HELIX TECHN CORP (HELI-Non-standard);  KOCH PROCESSES LTD (KOCH)   HOLMES A S,  RYAN J M;  US4334902-A   TECHNIP CIE FR ETUD (TCHP);  CIE FR ETUD CONSTR (FRCS-Non-standard);  US4359871-A   LINDE AG (LINM)   STRASS W;  US4453956-A   SNAMPROGETTI SPA (SNAM)   FABBRI C,  BELLITTO G,  FAILLA B,  LAMANTIA G;  US4609390-A   WILSON R A (WILS-Individual)   WILSON R A;  US4654522-A   CTS CORP (CTSC)   GORNICK R F,  ZDANYS J;  US4846862-A   AIR PROD & CHEM INC (AIRP)   COOK P J;  US4970867-A   AIR PROD & CHEM INC (AIRP)   HERRON D M,  CHATTERJEE N;  US5062270-A   EXXON PRODN RES CO (ESSO)   HAUT R C,  THOMAS E B,  DENTON R D;  US5291736-A   TECHNIP CIE FR ETUD & CONSTR (TCHP)   PARADOWSKI H;  US5327730-A   AMERICAN GAS & TECHNOLOGY INC (AMGA-Non-standard)   SFINTEANU D,  LEE H M,  MYERS A H,  TATE R E;  US5375422-A   BUTTS R C (BUTT-Individual)   BUTTS R C;  US5386699-A   AMERICAN GAS & TECHNOLOGY INC (AMGA-Non-standard)   LEE H M,  SFINTEANU D,  MYERS A H,  TATE R E;  US5390499-A   LIQUID CARBONIC CORP (LIQU-Non-standard)   GOLUEKE R J,  RHOADES G D;  US5450728-A   AIR PROD & CHEM INC (AIRP)   VANOMMEREN J,  PREFULLACHANDRA VORA J;  US5505048-A   HA B (HABB-Individual)   HA B,  DUPUIS G,  KONG P;  US5505232-A   CRYOFUEL SYSTEMS INC (CRYO-Non-standard)   BARCLAY J A;  US5511382-A   AIR LIQUIDE SA (AIRL)   DENIS C,  GAUTHIER P,  VILLARD J;  US5537827-A   YATES D E (YATE-Individual);  LOW W R (LOWW-Individual);  HOUSER C G (HOUS-Individual);  ANDRESS D L (ANDR-Individual)   ANDRESS D L,  HOUSER C G,  LOW W R,  YATES D E;  US5551256-A   LINDE AG (LINM)   SCHMIDT H;  US5600969-A   PHILLIPS PETROLEUM CO (PHIP)   LOW W R;  US5615561-A   WILLIAMS FIELD SERVICES ROCKY MOUNTAIN (WILL-Non-standard)   HOUSHMAND M,  KRUGER K A,  ALVES G W,  OSTASZEWSKI R,  BELHATECHE N;  US5655388-A   PRAXAIR TECHNOLOGY INC (PRAX)   JIN M Y,  BONAQUIST D P,  BEDDOME R A;  US5669234-A   PHILLIPS PETROLEUM CO (PHIP)   LOW W R,  ANDRESS D L,  HOUSER C G,  YAO J;  US5718126-A   INST FRANCAIS DU PETROLE (INSF)   CAPRON P,  ROJEY A;  US5755114-A   ABB RANDALL CORP (ALLM)   FOGLIETTA J H;  US5799505-A   PRAXAIR TECHNOLOGY INC (PRAX)   BILLINGHAM J F,  NENOV N T,  WEBER J A,  BONAQUIST D P,  CRIBBIN N R;  US5819555-A   ENGDAHL G (ENGD-Individual)   ENGDAHL G;  US5836173-A   PRAXAIR TECHNOLOGY INC (PRAX)   LYNCH N J,  BONAQUIST D P,  HENRY P A;  US5956971-A   EXXON PRODN RES CO (ESSO)   COLE E T,  THOMAS E R,  BOWEN R R;  US5983665-A   AIR PROD & CHEM INC (AIRP)   HOWARD L J,  HARRIS C F,  KINARD G E,  DAVIS R N,  ROWLES H C,  WRIGHT R A;  US6085546-A   JOHNSTON R P (JOHN-Individual)   JOHNSTON R P;  US6085547-A   JOHNSTON R P (JOHN-Individual)   JOHNSTON R P;  US6105390-A   LOCKHEED MARTIN IDAHO TECHNOLOGIES CO (LOCK)   BINGHAM D N,  WILDING B M,  MCKELLAR M G;  US6131395-A   LOCKHEED MARTIN CORP (LOCK)   GREENE W D,  ANTHONY M L;  US6131407-A   WISSOLIK R (WISS-Individual)   WISSOLIK R;  US6138473-A   AIR LIQUIDE SA (AIRL)   BOYER-VIDAL A;  US6220052-B1   LIBERTY FUELS INC (LIBE-Non-standard)   TATE R E,  LEE H M;  US6250244-B1   BHP PETROLEUM PTY LTD (BRHI)   DUBAR C A T,  LEH MING TU O;  US6354105-B1   IPSI LLC (IPSI-Non-standard)   LEE R,  JAIN P,  YAO J,  CHEN J J,  ELLIOT D G;  US6367286-B1   BLACK & VEATCH PRITCHARD INC (BLAC-Non-standard)   PRICE B C;  US6370910-B1   SHELL INT RES MIJ BV (SHEL)   GROOTJANS H F,  KLEIN NAGELVOORT R,  VINK K J;  US6372019-B1   TRANSLANG TECHNOLOGIES LTD (TRAN-Non-standard)   ALFEROV V I,  BAGUIROV L A,  FEYGIN V I,  ARBATOV A A,  IMAEV S Z,  DMITRIEV L M,  REZUNENKO V I;  US6378330-B1   EXXONMOBIL UPSTREAM RES CO (ESSO)   MINTA M,  BOWEN R R,  STONE J B;  US6389844-B1   SHELL INT RES MIJ BV (SHEL)   KLEIN NAGELVOORT R;  US6412302-B1   ABB LUMMUS GLOBAL INC (ALLM)   FOGLIETTA J H;  US6484533-B1   AIR PROD & CHEM INC (AIRP)   ALLAM R J,  COTTON R J,  DILLON I J L,  O'CONNOR D P;  WO1988000936-A   ;  WO1998059206-A1