WO200123080-A1 -- EP911075-A1   LINDE AG (LINM)   VON GEMMINGEN U;  JP61171530-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SHIINA K,  NOGUCHI Y;  US3090667-A   ;  US4033727-A   PHILLIPS PETROLEUM CO (PHIP)   VAUTRAIN L H;  US5202097-A   INST FRANCAIS DU PETROLE (INSF)   POUSSIN B;  WO1999020384-A1   ;  US6982067-B2 -- EP911075-A1   LINDE AG (LINM)   VON GEMMINGEN U;  JP61171530-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SHIINA K,  NOGUCHI Y;  US3090667-A   ;  US4033727-A   PHILLIPS PETROLEUM CO (PHIP)   VAUTRAIN L H;  US4110081-A   UOP INC (UNVO)   MILLAR R F,  PERSICO P J,  JENSEN R H;  US5202097-A   INST FRANCAIS DU PETROLE (INSF)   POUSSIN B;  WO1999020384-A1   ;  EP1704915-A1 -- EP650760-A1   AMMONIA CASALE SA (CASA);  ZARDI U (ZARD-Individual)   ZARDI U,  PAGANI G,  FILIPPI E;  EP911075-A1   LINDE AG (LINM)   VON GEMMINGEN U;  EP935995-A1   AMMONIA CASALE SA (CASA)   GUARINO G,  FILIPPI E;  JP61171530-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SHIINA K,  NOGUCHI Y;  US3090667-A   ;  US4033727-A   PHILLIPS PETROLEUM CO (PHIP)   VAUTRAIN L H;  US5202097-A   INST FRANCAIS DU PETROLE (INSF)   POUSSIN B;  WO1999020384-A1   ;  EP1227878-B1 -- EP911075-A1   LINDE AG (LINM)   VON GEMMINGEN U;  JP61171530-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SHIINA K,  NOGUCHI Y;  US3090667-A   ;  US4033727-A   PHILLIPS PETROLEUM CO (PHIP)   VAUTRAIN L H;  US5202097-A   INST FRANCAIS DU PETROLE (INSF)   POUSSIN B;  WO1999020384-A1   ;  US7771677-B2 -- EP911075-A1   LINDE AG (LINM)   VON GEMMINGEN U;  JP61171530-A   HITACHI LTD (HITA)   KOYAMA K,  SUGITA N,  SAKAGUCHI H,  SHIINA K,  NOGUCHI Y;  US3090667-A   ;  US4033727-A   PHILLIPS PETROLEUM CO (PHIP)   VAUTRAIN L H;  US4110081-A   UOP INC (UNVO)   MILLAR R F,  PERSICO P J,  JENSEN R H;  US4896704-A   ;  US5202097-A   INST FRANCAIS DU PETROLE (INSF)   POUSSIN B;  US6425423-B1   ;  US6467513-B1   TOYO ENG CORP (TOXS)   YANARU H,  NAKAMURA H,  YANAGISAWA Y;  US7353847-B2   DAVY PROCESS TECHNOLOGY LTD (POGC)   EARLY S R;  WO1999020384-A1