WO200200933-A2 -- GB1575053-A   ;  US2355446-A   ;  US4735703-A   ;  US5504267-A   ;  US5917102-A   ;  US6683227-B2 -- GB1575053-A   ;  US2355446-A   ;  US3829558-A   ;  US4273643-A   ;  US4735703-A   ;  US5167772-A   PARKER T H (PARK-Individual)   PARKER T H;  US5283318-A   EXXON RES & ENG CO (ESSO)   SALEH R Y,  SISKIN M,  KNUDSEN G A;  US5336595-A   ;  US5364996-A   TEXACO DEV CORP (TEXC)   CASTAGNOLI C J,  CHA S,  WANG H P;  US5386070-A   MIDWEST RES INST (MIDE)   CHUM H L,  EVANS R J;  US5389691-A   UNIV WYOMING (UYWY-Non-standard);  AMOCO CORP (STAD)   KRAUS L S,  CHA C Y,  PLANCHER H;  US5414169-A   MAZDA MOTOR CORP (MAZD)   TAKAHASHI T,  TANIMOTO Y,  MURAOKA A,  FUKUSHIMA T;  US5435890-A   MUNGER J H (MUNG-Individual)   ROBERTS D P;  US5449438-A   FORMEX TRADING GMBH (FORM-Non-standard)   JAGAU H H W,  SCHIMKO R;  US5464503-A   TEXACO DEV CORP (TEXC)   AVETISIAN V,  CASTAGNOLI C J,  CHA S;  US5487239-A   GENERAL ELECTRIC CO (GENE)   JUBENVILLE D,  JENKINS T E,  MULLIGAN C R;  US5487510-A   ;  US5492561-A   NESTE/WRIGHT ASPHALT PROD CO (NESO)   FLANIGAN T P;  US5504267-A   ;  US5506274-A   WOLF IND INC (WOLF-Non-standard)   BROWN W F;  US5543061-A   ;  US5582215-A   ;  US5608136-A   TOSHIBA KK (TOKE)   SUZUKI K,  TADAUCHI M;  US5611492-A   HUNT IND INC (HUNT-Non-standard)   HUNT J L,  HUNT J R;  US5618852-A   ;  US5634599-A   KHAIS I (KHAI-Individual);  REALI A (REAL-Individual);  REALI M (REAL-Individual);  REZNIK I (REZN-Individual)   KHAIS I,  REALI A,  REALI M,  REZNIK I;  US5656942-A   PIXEL SYSTEMS INC (PIXE-Non-standard)   WATTS M P C,  HENDLER L;  US5738025-A   FUJI RECYCLE IND KK (FUJI-Non-standard)   TACHIBANA T;  US5753086-A   WESTERN RES INST (WREW-Non-standard)   GUFFEY F D,  BARBOUR F A;  US5780696-A   SOLVAY SA (SOLV)   BAUER S;  US5847248-A   ENVIRONMENTAL SOLUTIONS INT LTD (ENVI-Non-standard)   BRIDLE T R,  SKRYPSKI-MANTELE S;  US5865956-A   ENVIRONMENTAL SOLUTIONS INT LTD (ENVI-Non-standard)   BRIDLE T R,  SKRYPSKI-MANTELE S;  US5917102-A   ;  US6133491-A   XING L (XING-Individual)   XING L;  US6139723-A   HYDROCARBON TECHNOLOGIES INC (HYDR-Non-standard)   LEE L,  PELRINE B P,  COMOLLI A G;  US6190542-B1   HYDROCARBON TECHNOLOGIES INC (HYDR-Non-standard)   COMOLLI A G,  LEE L;  US6387221-B1