WO9921640-A1 -- EP537943-A1   EXXON RES & ENG CO (ESSO)   MCHENRY J A,  DECKMAN H W,  LAI W L,  MATTURRO M G,  JACOBSON A J,  JOHNSON J W;  US5573737-A   US DEPT ENERGY (USAT)   KOBYLINSKI T P,  DUSEK J T,  BALACHANDRAN U,  KLEEFISCH M S;  WO1994024065-A1   ;  US5935533-A -- EP55104-A   MATSUSHITA ELEC IND CO LTD (MATU)   SEKIDO S,  TACHIBANA H,  NONOMIYA Y;  EP399833-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  MAZANEC T J,  FRYE J G;  EP450810-A   ;  US4330633-A   TEIJIN LTD (TEIJ)   YOSHISATO E,  AZUMA S,  YAMAJI T;  US4562124-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RUKA R J;  US4692429-A   ;  US4832818-A   ;  US5118395-A   AIR PROD & CHEM INC (AIRP)   CHEN M S K,  HEGARTY W P,  STEYERT W A;  US5126499-A   ;  US5134042-A   SRI INT (STRI)   MADOU M J,  OTAGAWA T,  SHER A;  US5149516-A   MOBIL OIL CORP (MOBI)   HAN S,  DECAUL L C,  PALERMO R E,  WALSH D E;  US5160713-A   STANDARD OIL CO OHIO (STAH)   MAZANEC T J,  VELENYI L J;  US5229101-A   ;  US5240473-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N,  LABAR J M,  THOROGOOD R M;  US5240480-A   AIR PROD & CHEM INC (AIRP)   THOROGOOD R M,  SRINIVASAN R,  YEE T F,  DRAKE M P;  US5261932-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N,  LABAR J M,  THOROGOOD R M;  US5306411-A   STANDARD OIL CO OHIO (STAH)   CABLE T L,  FRYE J G,  KLIEWER W R,  MAZANEC T J;  US5332597-A   AIR PROD & CHEM INC (AIRP)   CAROLAN M F,  DYER P N,  FINE S M,  MAKITKA A,  RICHARDS R E,  SCHAFFER L E;  US5356728-A   AMOCO CORP (STAD)   KOBYLINSKI T P,  UDOVICH C A,  POEPPEL R B,  BALACHANDRAN U,  KLEEFISCH M S;  US5418060-A   ;  US5573737-A   US DEPT ENERGY (USAT)   KOBYLINSKI T P,  DUSEK J T,  BALACHANDRAN U,  KLEEFISCH M S;  US5580497-A   AMOCO CORP (STAD)   BALACHANDRAN U,  KLEEFISCH M S,  KOBYLINSKI T P,  MORISSETTE S L,  PEI S;  US5639437-A   AMOCO CORP (STAD)   BALACHANDRAN U,  KLEEFISCH M S,  KOBYLINSKI T P,  MORISSETTE S L,  PEI S;  AU731075-B -- US5573737-A   US DEPT ENERGY (USAT)   KOBYLINSKI T P,  DUSEK J T,  BALACHANDRAN U,  KLEEFISCH M S;  WO1994024065-A1