US2002152937-A1 -- US3476683-A   LILJEGREN RJ (LILJ);  NATUR-OCH MILJOVARD (NATU-Non-standard);  LILJEGREN J (LILJ-Individual);  US3877920-A   CARLBERG G (CARL-Individual)   CARLBERG G;  US4079003-A   MANCHAK F (MANC-Individual)   MANCHAK F;  US4143122-A   STILL FA CARL (SILC);  ESCHWEILER BERGWERK SVER (ESCW)   LAUFHUETTE D,  GROENERT G;  US4159682-A   DORR OLIVER INC (DORO);  US4255129-A   DEPEW T N (DEPE-Individual);  REED R D (REED-Individual)   REED E E,  REED R D;  US4532873-A   WEYERHAEUSER CO (WEYE)   RIVERS J,  KRAMER C D,  COX R L;  US4554002-A   N-VIRO ENERGY SYST (NVIR-Non-standard)   NICHOLSON J P;  US4756890-A   PYROPOWER CORP (PYRO-Non-standard);  AHLSTROEM OY A (AHLS)   TANG J T,  SARKKI J P,  TESFAI A,  ENGSTROM F;  US4781842-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   NICHOLSON J P,  BURNHAM J C;  US4787323-A   ATLANTIC RICHFIELD CO (ATLF)   BEER G L,  LI Y H;  US4902431-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   NICHOLSON J P,  BURNHAM J C;  US4946382-A   UNION CARBIDE CORP (UNIC)   KOBAYASHI H,  SILVER L S;  US4970803-A   SULZER ESCHER WYSS GMBH (SULZ)   KELLER K;  US4997572-A   WILLOW TECHN INC (WILL-Non-standard)   WURTZ W O;  US5001994-A   TOA TRADING CO LTD (TOAT-Non-standard);  TOA NETSU-KEN KK (TOAN-Non-standard);  TOA NEKKEN CORP LTD (TOAN-Non-standard)   MORIMOTO I,  SASAKI H;  US5135664-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   BURNHAM J C;  US5196043-A   WILLOW TECHNOLOGY INC (WILL-Non-standard)   WURTZ W O;  US5211723-A   TEXACO INC (TEXC)   KHAN M R;  US5217624-A   ONODA CEMENT KK (ONOD);  ONODA CHEMICO CO LTD (ONOD)   YAMANE I,  SAITO T,  SHIMODA M,  KOUCHI S;  US5229011-A   CHRISTY R W (CHRI-Individual)   CHRISTY R W,  CHRISTY P G;  US5275733-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   BURNHAM J C;  US5277826-A   BROWNING FERRIS IND (BROW-Non-standard)   BURNS H,  GREMMINGER L;  US5307765-A   VIRR M J (VIRR-Individual)   VIRR M J;  US5346616-A   RDP CO (RDPR-Non-standard)   CHRISTY P G,  CHRISTY R W;  US5417861-A   N-VIRO INT CORP (NVIR-Non-standard)   BURNHAM J C;  US5422015-A   HONDO CHEM INC (HOND-Non-standard)   ANGELL E C,  KARR J;  US5490907-A   AGGLO INC (AGGL-Non-standard)   WEINWURM P,  WEINWURM P S;  US5525239-A   DUSKE DESIGN & EQUIP CO INC (DUSK-Non-standard)   DUSKE W P;  US5746006-A   DUSKE ENG CO INC (DUSK-Non-standard)   DUSKE W P,  HOGUE R T,  KOESLIN K J;  US5837142-A   MULLERHEIM S B (MULL-Individual);  ROY G W (ROYG-Individual)   MULLERHEIM S B,  ROY G W;  US5849050-A   ENTEC RECYCLING & INDUSTRIEANLAGEN PLANU (ENTE-Non-standard);  US5853590-A   MEDICAL COLLEGE OHIO (MEDI-Non-standard)   BURNHAM J C;  US5937770-A   BABCOCK-HITACHI KK (HITG)   KOBAYASHI H,  OKAZAKI H,  TANIGUCHI M,  KIYAMA K;  US6048510-A   COAL TECH CORP (COAL-Non-standard)   ZAUDERER B;  US6056880-A   BOSS E E (BOSS-Individual);  SHEPHERD S L (SHEP-Individual)   SHEPHERD S L,  BOSS E E;  US6234093-B1   POLITEKHENERGO SMALL ENTERP (POLI-Soviet Institute)   FINKER F Z,  KUBISHKIN I B,  ZAKHAROV V J,  SOBCZUK C,  SWIRSKI J;  US6237246-B1   R3 MANAGEMENT LTD (RTHR-Non-standard)   MILLARD R;  US6298796-B1   HITACHI LTD (HITA);  BABCOCK-HITACHI KK (HITG)   OKAZAKI H,  KOBAYASHI H,  TSUMURA T,  KIYAMA K,  JINBO T,  KURAMASHI K,  MORITA S,  NOMURA S,  SHIMOGORI M;  WO2003057803-A1 -- DE3916597-A   ;  EP985723-A2   ;  US4756890-A   PYROPOWER CORP (PYRO-Non-standard);  AHLSTROEM OY A (AHLS)   TANG J T,  SARKKI J P,  TESFAI A,  ENGSTROM F;  US4997572-A   WILLOW TECHN INC (WILL-Non-standard)   WURTZ W O;  US5211723-A   TEXACO INC (TEXC)   KHAN M R;  US5217624-A   ONODA CEMENT KK (ONOD);  ONODA CHEMICO CO LTD (ONOD)   YAMANE I,  SAITO T,  SHIMODA M,  KOUCHI S;  US6048510-A   COAL TECH CORP (COAL-Non-standard)   ZAUDERER B;  US6883444-B2 -- DE3916597-A   ;  EP935723-A1   TRELLEBORG VIKING AS (TREL)   SJOETUN K;  EP985723-A2   ;  JP03059303-A   ;  US3476683-A   LILJEGREN RJ (LILJ);  NATUR-OCH MILJOVARD (NATU-Non-standard);  LILJEGREN J (LILJ-Individual);  US3741890-A   ;  US3877920-A   CARLBERG G (CARL-Individual)   CARLBERG G;  US4079003-A   MANCHAK F (MANC-Individual)   MANCHAK F;  US4143122-A   STILL FA CARL (SILC);  ESCHWEILER BERGWERK SVER (ESCW)   LAUFHUETTE D,  GROENERT G;  US4159682-A   DORR OLIVER INC (DORO);  US4255129-A   DEPEW T N (DEPE-Individual);  REED R D (REED-Individual)   REED E E,  REED R D;  US4462341-A   STROHMEYER C (STRO-Individual)   STROHMEYER C;  US4532873-A   WEYERHAEUSER CO (WEYE)   RIVERS J,  KRAMER C D,  COX R L;  US4554002-A   N-VIRO ENERGY SYST (NVIR-Non-standard)   NICHOLSON J P;  US4756890-A   PYROPOWER CORP (PYRO-Non-standard);  AHLSTROEM OY A (AHLS)   TANG J T,  SARKKI J P,  TESFAI A,  ENGSTROM F;  US4781842-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   NICHOLSON J P,  BURNHAM J C;  US4787323-A   ATLANTIC RICHFIELD CO (ATLF)   BEER G L,  LI Y H;  US4902431-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   NICHOLSON J P,  BURNHAM J C;  US4932335-A   SARBERGWERKE AG (SAAG)   BRUECKNER H,  STADIE L,  SCHOLL G,  STOLL K E;  US4946382-A   UNION CARBIDE CORP (UNIC)   KOBAYASHI H,  SILVER L S;  US4970803-A   SULZER ESCHER WYSS GMBH (SULZ)   KELLER K;  US4997572-A   WILLOW TECHN INC (WILL-Non-standard)   WURTZ W O;  US5001994-A   TOA TRADING CO LTD (TOAT-Non-standard);  TOA NETSU-KEN KK (TOAN-Non-standard);  TOA NEKKEN CORP LTD (TOAN-Non-standard)   MORIMOTO I,  SASAKI H;  US5135664-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   BURNHAM J C;  US5196043-A   WILLOW TECHNOLOGY INC (WILL-Non-standard)   WURTZ W O;  US5211723-A   TEXACO INC (TEXC)   KHAN M R;  US5217624-A   ONODA CEMENT KK (ONOD);  ONODA CHEMICO CO LTD (ONOD)   YAMANE I,  SAITO T,  SHIMODA M,  KOUCHI S;  US5229011-A   CHRISTY R W (CHRI-Individual)   CHRISTY R W,  CHRISTY P G;  US5234468-A   TEXACO INC (TEXC)   KHAN M R;  US5275733-A   N-VIRO ENERGY SYSTEMS LTD (NVIR-Non-standard)   BURNHAM J C;  US5277826-A   BROWNING FERRIS IND (BROW-Non-standard)   BURNS H,  GREMMINGER L;  US5307765-A   VIRR M J (VIRR-Individual)   VIRR M J;  US5346616-A   RDP CO (RDPR-Non-standard)   CHRISTY P G,  CHRISTY R W;  US5417861-A   N-VIRO INT CORP (NVIR-Non-standard)   BURNHAM J C;  US5422015-A   HONDO CHEM INC (HOND-Non-standard)   ANGELL E C,  KARR J;  US5429645-A   BENSON P H (BENS-Individual);  WICKERSHAM W S (WICK-Individual)   WICKERSHAM W S,  BENSON P H;  US5447703-A   NOVACON ENERGY SYSTEMS INC (NOVA-Non-standard);  DELL A L (DELL-Individual)   BAER S H,  DELL AQUILA J;  US5490907-A   AGGLO INC (AGGL-Non-standard)   WEINWURM P,  WEINWURM P S;  US5525239-A   DUSKE DESIGN & EQUIP CO INC (DUSK-Non-standard)   DUSKE W P;  US5746006-A   DUSKE ENG CO INC (DUSK-Non-standard)   DUSKE W P,  HOGUE R T,  KOESLIN K J;  US5837142-A   MULLERHEIM S B (MULL-Individual);  ROY G W (ROYG-Individual)   MULLERHEIM S B,  ROY G W;  US5849050-A   ENTEC RECYCLING & INDUSTRIEANLAGEN PLANU (ENTE-Non-standard);  US5853590-A   MEDICAL COLLEGE OHIO (MEDI-Non-standard)   BURNHAM J C;  US5937770-A   BABCOCK-HITACHI KK (HITG)   KOBAYASHI H,  OKAZAKI H,  TANIGUCHI M,  KIYAMA K;  US5980858-A   EBARA CORP (EBAR);  UBE IND LTD (UBEI)   FUJIMURA H,  HIRAYAMA Y,  FUJINAMI S,  NAGATO S,  HIROSE T,  OSHITA T,  IRIE M,  TAKANO K,  FUKUDA T;  US6048510-A   COAL TECH CORP (COAL-Non-standard)   ZAUDERER B;  US6056880-A   BOSS E E (BOSS-Individual);  SHEPHERD S L (SHEP-Individual)   SHEPHERD S L,  BOSS E E;  US6063355-A   EBARA CORP (EBAR);  UBE IND LTD (UBEI)   FUJIMURA H,  HIRAYAMA Y,  FUJINAMI S,  NAGATO S,  HIROSE T,  OSHITA T,  IRIE M,  TAKANO K,  FUKUDA T;  US6168688-B1   SOC FR THERMOLYSE SA (FRTH-Non-standard)   CLOT G;  US6234093-B1   POLITEKHENERGO SMALL ENTERP (POLI-Soviet Institute)   FINKER F Z,  KUBISHKIN I B,  ZAKHAROV V J,  SOBCZUK C,  SWIRSKI J;  US6237246-B1   R3 MANAGEMENT LTD (RTHR-Non-standard)   MILLARD R;  US6280695-B1   GE ENERGY & ENVIRONMENTAL RES CORP (GENE)   LISSIANSKI V V,  ZAMANSKY V M,  LYON R K,  PAYNE R;  US6298796-B1   HITACHI LTD (HITA);  BABCOCK-HITACHI KK (HITG)   OKAZAKI H,  KOBAYASHI H,  TSUMURA T,  KIYAMA K,  JINBO T,  KURAMASHI K,  MORITA S,  NOMURA S,  SHIMOGORI M