;  WO2006113294-A1 -- FR2543946-A   INST FRANCAIS DU PETROLE (INSF)   TRAVERS C,  SNAPPE R,  DINH C T,  BOURNOVIL J P;  JP59216839-A   KOEI CHEM IND CO LTD (KOEI)   DOI K;  US4243613-A   CHEM WERKE HUELS AG (CHEM)   BROCKHAUS R,  FRANKE H J;  US5364887-A   METALLGESELLSCHAFT AG (METG)   KOENIG P,  SUPP E,  MOELLER F;  WO2005037746-A1   ESKOM HOLDINGS LTD (ESKO-Non-standard)   LINKOV V M,  BELYAKOV V N,  BELYAKOV L A;  JP59216839-B   KOEI CHEM IND CO LTD (KOEI)   DOI K;  US7705059-B2 -- FR2543946-A   INST FRANCAIS DU PETROLE (INSF)   TRAVERS C,  SNAPPE R,  DINH C T,  BOURNOVIL J P;  JP59216839-A   KOEI CHEM IND CO LTD (KOEI)   DOI K;  US4243613-A   CHEM WERKE HUELS AG (CHEM)   BROCKHAUS R,  FRANKE H J;  US5364887-A   METALLGESELLSCHAFT AG (METG)   KOENIG P,  SUPP E,  MOELLER F;  WO2005037746-A1   ESKOM HOLDINGS LTD (ESKO-Non-standard)   LINKOV V M,  BELYAKOV V N,  BELYAKOV L A;  CN101189204-B -- EP1180511-A1   NIPPON STEEL CORP (YAWA)   FUJIMOTO K,  TSUBAKI N;  US4609441-A   GAS RES INST (GASR-Non-standard)   FRESE K W,  LEACH S C,  SUMMERS D P;  US4762528-A   REICHL E H (REIC-Individual)   REICHL E H;  US5928806-A   OLAH G A (OLAH-Individual);  PRAKASH G K S (PRAK-Individual)   OLAH G A,  PRAKASH G K S;  EP1871732-B1 -- FR2543946-A   INST FRANCAIS DU PETROLE (INSF)   TRAVERS C,  SNAPPE R,  DINH C T,  BOURNOVIL J P;  US4243613-A   CHEM WERKE HUELS AG (CHEM)   BROCKHAUS R,  FRANKE H J;  US5364887-A   METALLGESELLSCHAFT AG (METG)   KOENIG P,  SUPP E,  MOELLER F;  WO2005037746-A1   ESKOM HOLDINGS LTD (ESKO-Non-standard)   LINKOV V M,  BELYAKOV V N,  BELYAKOV L A;  EP1871731-B1 -- EP1180511-A1   NIPPON STEEL CORP (YAWA)   FUJIMOTO K,  TSUBAKI N;  US4762528-A   REICHL E H (REIC-Individual)   REICHL E H;  US5928806-A   OLAH G A (OLAH-Individual);  PRAKASH G K S (PRAK-Individual)   OLAH G A,  PRAKASH G K S;  KR1359622-B1 -- JP2000342964-A   UNIV SHIZUOKA (UYSH-Non-standard)   UENO A,  AZUMA N,  AOKI K,  SUGINO T;  US3996294-A   BAYER AG (FARB);  US4243613-A   CHEM WERKE HUELS AG (CHEM)   BROCKHAUS R,  FRANKE H J;  US5364887-A   METALLGESELLSCHAFT AG (METG)   KOENIG P,  SUPP E,  MOELLER F