US2002141919-A1 -- US2848620-A   ;  US2958391-A   ;  US3022187-A   ;  US3208198-A   ;  US3241298-A   ;  US3413777-A   ;  US3477288-A   ;  US3713270-A   NAT RES DEV CORP (NATR);  US4132668-A   TOPCHIEV PETROCHEM SYNTH (TOPE);  LUMUMBA P UNIV (UYLU-Soviet Institute);  GRYAZNOV V M (GRYA-Individual)   GRJAZNOV V M,  SMIRNOV V S,  VDOVIN V;  US4496373-A   KERNFORSCHUNGSANLAGE JUELICH (KERJ)   BEHR F,  SCHULTEN R,  WEYRICH W;  US4589891-A   KERNFORSCHUNGSANLAGE JUELICH (KERJ);  JULIAN LAB INC (JULI)   INIOTAKIS N,  DECKEN C B,  FROHLING W;  US4689150-A   NGK INSULATORS LTD (NIGA)   ABE F,  FUJITA T;  US4699637-A   KERNFORSCHUNGSANLAGE JUELICH (KERJ);  HERAEUS GMBH W C (HERA)   DECKEN C B,  FEDDERS H,  FROHLING W,  INIOTAKIS N,  SERNETZ F;  US4711719-A   STICHTING ENERGIE (ENER-Non-standard);  ECN NETHERLANDS ENE (ECNN-Non-standard);  LEENAARS A F M (LEEN-Individual);  US4857080-A   MEMBRANE TECHN RES (MEMB-Non-standard)   BAKER R W,  LOUIE J,  PFROMM P H,  WIJMANS J G;  US4865630-A   NGK INSULATORS LTD (NIGA);  ABE F (ABEF-Individual)   ABE F;  US5342431-A   WISCONSIN ALUMNI RES FOUND (WISC)   WEBSTER E T,  XU Q,  ANDERSON M A;  US5451386-A   UNIV OREGON STATE (UYOR-Non-standard)   COLLINS J P,  WAY J D;  US5997614-A   DONALDSON CO INC (DOND)   TUMA D L,  LOGAN R J,  DAHLGREN A C;  US6630423-B2   SIEMENS WESTINGHOUSE POWER CORP (SIEI)   ALVIN M A,  BRUCK G J;  US6916454-B2 -- US2848620-A   ;  US2958391-A   ;  US3022187-A   ;  US3208198-A   ;  US3241298-A   ;  US3413777-A   ;  US3477288-A   ;  US3713270-A   NAT RES DEV CORP (NATR);  US4132668-A   TOPCHIEV PETROCHEM SYNTH (TOPE);  LUMUMBA P UNIV (UYLU-Soviet Institute);  GRYAZNOV V M (GRYA-Individual)   GRJAZNOV V M,  SMIRNOV V S,  VDOVIN V;  US4496373-A   KERNFORSCHUNGSANLAGE JUELICH (KERJ)   BEHR F,  SCHULTEN R,  WEYRICH W;  US4589891-A   KERNFORSCHUNGSANLAGE JUELICH (KERJ);  JULIAN LAB INC (JULI)   INIOTAKIS N,  DECKEN C B,  FROHLING W;  US4689150-A   NGK INSULATORS LTD (NIGA)   ABE F,  FUJITA T;  US4699637-A   KERNFORSCHUNGSANLAGE JUELICH (KERJ);  HERAEUS GMBH W C (HERA)   DECKEN C B,  FEDDERS H,  FROHLING W,  INIOTAKIS N,  SERNETZ F;  US4711719-A   STICHTING ENERGIE (ENER-Non-standard);  ECN NETHERLANDS ENE (ECNN-Non-standard);  LEENAARS A F M (LEEN-Individual);  US4857080-A   MEMBRANE TECHN RES (MEMB-Non-standard)   BAKER R W,  LOUIE J,  PFROMM P H,  WIJMANS J G;  US4865630-A   NGK INSULATORS LTD (NIGA);  ABE F (ABEF-Individual)   ABE F;  US4880441-A   PERMEA INC (PERM-Non-standard)   KESTING R E,  CRUSE C A,  FRITZSCHE A K,  MALON R F,  MURPHY M K,  HANDERMANN A C;  US4971696-A   NGK INSULATORS LTD (NIGA)   ABE F,  MORI H,  TAKAGI S;  US5139540-A   TEXACO INC (TEXC)   NAJJAR M S,  KOKTURK U,  HILMAR M D,  TEMPLETON J C;  US5139541-A   BEND RES INC (BEND-Non-standard)   EDLUND D J;  US5217506-A   BEND RES INC (BEND-Non-standard)   EDLUND D J,  FRIESEN D T;  US5259870-A   BEND RES INC (BEND-Non-standard)   EDLUND D J;  US5310414-A   TEXACO INC (TEXC)   HILMAR M D,  AVERBACK R S,  NAJJAR M S,  KOKTURK U;  US5342431-A   WISCONSIN ALUMNI RES FOUND (WISC)   WEBSTER E T,  XU Q,  ANDERSON M A;  US5358553-A   TEXACO INC (TEXC)   NAJJAR M S,  DORAWALA T G,  KOTURK U;  US5393325-A   BEND RES INC (BEND-Non-standard)   EDLUND D J;  US5415891-A   MEDIA & PROCESS TECHNOLOGY INC (MEDI-Non-standard)   WU J C,  LIU P K T;  US5451386-A   UNIV OREGON STATE (UYOR-Non-standard)   COLLINS J P,  WAY J D;  US5487774-A   WISCONSIN ALUMNI RES FOUND (WISC)   ANDERSON M A,  HILL C G,  PETERSON R A;  US5498278-A   BEND RES INC (BEND-Non-standard)   EDLUND D J;  US5518530-A   NGK INSULATORS LTD (NIGA)   SAKAI O,  TAKAHASHI T,  ABE T,  FUJII T;  US5738708-A   UNIV CALIFORNIA (REGC)   PEACHEY N M,  DYE R C,  SNOW R C,  BIRDSELL S A;  US5782959-A   KOREA ADV INST SCI & TECHNOLOGY (KOAD)   YANG S M,  PARK S B,  LEE S J,  LEE S Y;  US5782960-A   MITSUBISHI JUKOGYO KK (MITO)   OGAWA W,  KOBAYASHI T,  SUEDA N,  MATSUMOTO T,  IMAI T,  SHIROGANE S,  SHIOTA H,  UCHIDA T;  US5810912-A   NOK CORP (NIOD);  MOROOKA S (MORO-Individual)   AKIYAMA S,  ANZAI H,  MOROOKA S,  KUSAKABE K,  HAYASHI J,  YAMAMOTO M;  US5827569-A   MOROOKA S (MORO-Individual);  NOK CORP (NIOD)   AKIYAMA S,  ANZAI H,  MOROOKA S,  MAEDA H,  KUSAKABE K;  US5904754-A   JUDA ASSOC WALTER (JUDA-Non-standard)   BOMBARD R T,  JUDA W,  KRUEGER C W;  US5931987-A   BUXBAUM R E (BUXB-Individual)   BUXBAUM R E;  US5955044-A   AIR PROD & CHEM INC (AIRP);  JOHNSON MATTHEY INC (JOHO)   HSIUNG T H,  LUCHT J;  US5980989-A   NGK INSULATORS LTD (NIGA)   TAKAHASHI T,  KOSAKA S;  US5989319-A   NGK INSULATORS LTD (NIGA)   KAWAE T,  KOSAKA S,  NAKAMURA S;  US5997614-A   DONALDSON CO INC (DOND)   TUMA D L,  LOGAN R J,  DAHLGREN A C;  US6066592-A   NGK INSULATORS LTD (NIGA)   KAWAE T,  KOSAKA S,  NAKAMURA S;  US6083297-A   WHATMAN INC (WHAT-Non-standard)   NICHOLS R W,  DAVIS J C,  VALUS R J;  US6630423-B2   SIEMENS WESTINGHOUSE POWER CORP (SIEI)   ALVIN M A,  BRUCK G J