EP681154-A -- DE4322618-A   FOERSTER H (FOER-Individual);  LESER W (LESE-Individual)   FOERSTER H;  EP681154-A1 -- DE4322618-A   FOERSTER H (FOER-Individual);  LESER W (LESE-Individual)   FOERSTER H;  DE4322618-A1   FOERSTER H (FOER-Individual);  LESER W (LESE-Individual)   FOERSTER H;  DE4400456-A1   FOERSTER H (FOER-Individual);  LESER W (LESE-Individual);  DE4415861-A1 -- DE3149847-A1   LINDE AG (LINM)   FREY G;  DE3609292-A1   LINDE AG (LINM)   FREY G;  DE3626561-A1   LINDE AG (LINM);  BAUER H (BAUE-Individual)   BAUER H;  DE3721039-A1   WACKER CHEM GMBH (WACK)   KISCH W,  VOGEL W,  SCHLIERF A;  DE3933731-C2   SULZER ESCHER WYSS GMBH (SULZ)   CURTIUS F R;  DE4001710-A1   WEBER G (WEBE-Individual)   WEBER G;  DE4040390-C2   HERCO KUEHLTECHNIK HERMANNS & CO GMBH (HERC-Non-standard);  AIR PROD GMBH (AIRP)   KARTHAUS M,  HERMANNS P,  HERMANNS K,  KUSENBERG G,  HAGENBRUCK N;  DE4107211-A1   FORSCHUNGSINST TEXTILTECHNOLOGIE (FSFT)   SCHLEGEL H;  DE4206923-A1   LINDE AG (LINM)   CORDUAN H,  SKOLAUDE W;  DE4303670-A1   FOERSTER H (FOER-Individual)   FOERSTER H,  LESER W,  ELLE C;  DE4322618-A1   FOERSTER H (FOER-Individual);  LESER W (LESE-Individual)   FOERSTER H;  US5507147-A -- US3894942-A   GEN AMERICAN TRANSPORTATION CO (GENU);  US3899312-A   LINDE AG (LINM);  US3989478-A   PETROCARBON DEV LTD (PETR-Non-standard);  US4299606-A   HOOKER CHEM & PLASTICS CORP (HOOK)   ROBOTA S,  ALASTAIR J H,  MCGREGOR G A,  TROLLOPE R;  US4460395-A   PRITCHARD CORP (PRIT-Non-standard)   NOBLES J E,  SWENSON L K;  US4617038-A   EL PASO HYDROCARBONS (ELPA)   MEHRA Y R;  US4713940-A   LINDE AG (LINM)   RANKE G,  SIEGERT F;  US4883515-A   ADV EXTRACTION TECH (ADEX-Non-standard)   MEHRA Y R,  COFFEY F B;  US4888035-A   LINDE AG (LINM)   BAUER H;  US5144807-A   BROWN E D (BROW-Individual)   BROWN E D;  US5176002-A   PROCESS SYSTEMS INT INC (PROC-Non-standard)   OBRIEN J V,  WOJNAROWSKI R A;  US5315832-A   PROCESS SYSTEM INT INC (PROC-Non-standard)   HOPEWELL R B;  US5426945-A   JORDAN HOLDING CO (JORD-Non-standard)   MENZENSKI E