501 - COMPOSITIONS: CERAMIC
1 NATIONALE D'ETUDE ET DE CONSTR DE MOTEURS D'AVIATION FR
1 SIEMENS WESTINGHOUSE POWER CORP
502 - CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS
OF MAKING
3 ALBEMARLE CORP
1 CHISSO CORP JP
1 ENGELHARD CORP
1 GAS RESEARCH INSTITUTE
1 IDEMITSU KOSAN CO LTD JP
1 IMPERIAL CHEMICAL INDUSTRIES LTD GB
503 - RECORD RECEIVER HAVING PLURAL INTERACTIVE LEAVES OR A COLORLESS
COLOR FORMER, METHOD OF USE, OR DEVELOPER THEREFOR
2 IMPERIAL CHEMICAL INDUSTRIES LTD GB
504 - PLANT PROTECTING AND REGULATING COMPOSITIONS
1 DEGUSSA DE
1 ENGELHARD CORP
1 IDEMITSU KOSAN CO LTD JP
1 NOVARTIS FINANCE CORP
508 - SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR
SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND
MISCELLANEOUS MINERAL OIL COMPOSITIONS
4 IDEMITSU KOSAN CO LTD JP
510 - CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS
THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS
2 SHOWA DENKO K K JP
1 ALBEMARLE CORP
1 ALCON LABORATORIES INC
1 JOHNSON, S C & SON INC
1 RHONE-POULENC CHIMIE FR
514 - DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS
10 AMERICAN HOME PRODUCTS CORP
9 SCHERING AG DE
7 DUKE UNIVERSITY
6 ALCON LABORATORIES INC
5 AMGEN INC
5 GLAXO WELLCOME INC
4 YEDA RESEARCH & DEVELOPMENT CO LTD IL
3 PITTSBURGH, UNIVERSITY OF
2 HARVARD COLLEGE, PRESIDENT & FELLOWS OF
2 NATIONAL RESEARCH COUNCIL OF CANADA CA
2 PENN STATE RESEARCH FOUNDATION THE
2 SHOWA DENKO K K JP
1 BOEHRINGER MANNHEIM GMBH DE
1 HAYASHIBARA SEIBUTSU KAGAKU KENKYUJO K K JP
1 HITACHI CHEMICAL CO LTD JP
1 IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC
1 JOHNSON, S C & SON INC
1 SCRIPPS RESEARCH INSTITUTE THE
518 - CHEMISTRY: FISCHER-TROPSCH PROCESSES; OR PURIFICATION OR
RECOVERY OF PRODUCTS THEREOF
1 ATLANTIC RICHFIELD CO
521 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
9 IMPERIAL CHEMICAL INDUSTRIES LTD GB
1 DSM N V NL
1 WACKER-CHEMIE GMBH DE
522 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
1 ALCON LABORATORIES INC
1 DSM N V NL
1 MORTON INTERNATIONAL INC
1 NITTO DENKO CORP JP
523 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
1 DAIKIN KOGYO CO LTD JP
1 DSM N V NL
1 IMPERIAL CHEMICAL INDUSTRIES LTD GB
1 MORTON INTERNATIONAL INC
1 PENN STATE RESEARCH FOUNDATION THE
1 RISO KAGAKU CORP JP
1 WACKER-CHEMIE GMBH DE
524 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
4 WACKER-CHEMIE GMBH DE
2 DSM N V NL
1 ALBEMARLE CORP
1 BETZDEARBORN INC
1 DAIKIN KOGYO CO LTD JP
1 HITACHI MAXELL LTD JP
1 IDEMITSU KOSAN CO LTD JP
1 NTN CORP JP
1 RHONE-POULENC CHIMIE FR
1 SHOWA DENKO K K JP
525 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
4 IDEMITSU KOSAN CO LTD JP
3 DAIKIN KOGYO CO LTD JP
3 MORTON INTERNATIONAL INC
2 MASSACHUSETTS, UNIVERSITY OF
2 WACKER-CHEMIE GMBH DE
1 PENN STATE RESEARCH FOUNDATION THE
526 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
3 DSM N V NL
2 SHOWA DENKO K K JP
1 DAIKIN KOGYO CO LTD JP
1 DEGUSSA DE
528 - SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520
SERIES
4 DSM N V NL
4 WACKER-CHEMIE GMBH DE
1 IDEMITSU KOSAN CO LTD JP
1 MASSACHUSETTS, UNIVERSITY OF
1 NITTO DENKO CORP JP
1 SCHERING AG DE
1 SHOWA DENKO K K JP
530 - CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS;
LIGNINS OR REACTION PRODUCTS THEREOF
3 AMGEN INC
1 HARVARD COLLEGE, PRESIDENT & FELLOWS OF
1 SCRIPPS RESEARCH INSTITUTE THE
534 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 SCHERING AG DE
1 WACKER-CHEMIE GMBH DE
536 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 AMERICAN HOME PRODUCTS CORP
1 IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC
1 PLANCK-GESELL, MAX- ZUR FORDERUNG DER WISSENSCHAFTEN DE
1 SCHERING AG DE
1 SCRIPPS RESEARCH INSTITUTE THE
1 YEDA RESEARCH & DEVELOPMENT CO LTD IL
540 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
2 DSM N V NL
544 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
2 GLAXO WELLCOME INC
1 DSM N V NL
1 SCHERING AG DE
1 SCRIPPS RESEARCH INSTITUTE THE
1 WACKER-CHEMIE GMBH DE
546 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 PITTSBURGH, UNIVERSITY OF
1 SHOWA DENKO K K JP
548 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 ALBEMARLE CORP
1 DEGUSSA DE
1 GLAXO WELLCOME INC
1 SCRIPPS RESEARCH INSTITUTE THE
549 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 DEGUSSA DE
1 DSM N V NL
1 HITACHI CHEMICAL CO LTD JP
1 IDEMITSU KOSAN CO LTD JP
1 SCHERING AG DE
1 SCRIPPS RESEARCH INSTITUTE THE
552 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 ALCON LABORATORIES INC
1 SCHERING AG DE
554 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
2 DSM N V NL
1 IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC
1 WACKER-CHEMIE GMBH DE
556 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
2 WACKER-CHEMIE GMBH DE
1 ALBEMARLE CORP
1 DSM N V NL
1 GLAXO WELLCOME INC
558 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 ALBEMARLE CORP
1 AMERICAN HOME PRODUCTS CORP
1 SHOWA DENKO K K JP
560 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 ALCON LABORATORIES INC
1 MORTON INTERNATIONAL INC
1 SCRIPPS RESEARCH INSTITUTE THE
562 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
2 DSM N V NL
1 PITTSBURGH, UNIVERSITY OF
1 RHONE-POULENC CHIMIE FR
564 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
2 ALBEMARLE CORP
2 AMERICAN HOME PRODUCTS CORP
1 ENGELHARD CORP
568 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
1 DEGUSSA DE
1 DSM N V NL
1 ENGELHARD CORP
1 GLAXO WELLCOME INC
1 PENN STATE RESEARCH FOUNDATION THE
1 RHONE-POULENC CHIMIE FR
570 - ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES
4 DAIKIN KOGYO CO LTD JP
1 IMPERIAL CHEMICAL INDUSTRIES LTD GB
585 - CHEMISTRY OF HYDROCARBON COMPOUNDS
1 IMPERIAL CHEMICAL INDUSTRIES LTD GB
588 - HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT
1 SHOWA DENKO K K JP
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