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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2004 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 203, Distillation: Processes, Separatory

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant
First-Named Assignee 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 10 7 13 12 5 14 8 5 8 3 3 10 14 18 5 7 12 21 27 12 17 25 14 25 24 9 43 7 12 28 20 8 9 11 3 6 475
PHILLIPS PETROLEUM COMPANY 15 5 2 9 5 5 3 3 8 8 9 9 3 3 6 6 12 5 1 1 0 6 5 10 2 1 2 0 0 0 0 2 0 1 0 0 147
BASF AKTIENGESELLSCHAFT 1 1 1 1 1 3 3 2 3 1 2 0 6 2 4 2 3 3 2 1 2 4 3 0 0 1 1 1 6 3 9 6 8 9 4 6 105
E. I. DU PONT DE NEMOURS AND COMPANY 2 0 5 5 4 0 0 1 0 0 1 0 1 3 3 2 0 0 0 0 0 3 1 3 4 2 3 0 0 4 3 1 0 2 2 1 56
BAYER AKTIENGESELLSCHAFT 0 3 0 2 1 1 2 3 2 2 6 2 1 5 3 0 0 0 0 1 1 1 2 0 3 3 0 1 2 0 1 0 0 1 1 0 50
HOECHST AKTIENGESELLSCHAFT 1 0 0 1 0 1 1 1 2 0 1 2 1 3 0 1 2 0 2 3 1 2 3 2 1 1 4 2 3 3 1 0 0 0 0 0 45
DOW CHEMICAL COMPANY 1 1 1 3 2 7 1 1 2 0 3 2 3 3 1 0 1 1 1 3 0 0 0 0 1 2 1 0 0 1 1 0 0 0 0 0 43
UOP 5 2 2 2 1 2 1 0 11 5 1 1 1 1 1 0 1 0 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 1 1 43
ALLIED-SIGNAL INC. 3 0 0 0 1 1 0 0 1 0 0 2 3 1 1 4 0 0 0 2 0 1 1 2 2 2 0 1 0 2 0 1 0 1 0 0 32
SHELL OIL COMPANY 2 2 2 2 3 1 2 0 1 0 0 0 0 0 0 5 0 0 1 0 1 2 3 0 1 0 0 0 1 0 0 1 0 1 0 0 31
COSDEN TECHNOLOGY, INC. 0 0 0 0 0 0 0 6 2 2 4 1 1 1 3 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
MONSANTO COMPANY, INC. 4 1 2 0 2 1 1 0 6 1 0 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 22
NIPPON SHOKUBAI CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 2 4 9 4 21
IMPERIAL CHEMICAL INDUSTRIES PLC 0 3 0 0 0 3 0 1 1 0 2 2 2 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 19
INSTITUT FRANCAIS DU PETROLE 0 0 0 0 0 0 1 0 0 0 1 0 1 1 0 1 0 0 0 0 0 0 0 1 2 4 0 2 2 2 0 0 0 0 0 1 19
HOECHST CELANESE CORPORATION 1 2 0 2 1 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 1 2 2 0 1 0 0 0 0 0 17
STANDARD OIL COMPANY 2 0 0 1 0 0 0 1 0 0 2 1 2 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 16
TEXACO CHEMICAL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 11 1 3 0 0 0 0 0 0 0 0 0 0 16
ASAHI KASEI KOGYO KABUSHIKI KAISHA 0 0 1 2 0 0 1 0 0 0 0 1 3 1 1 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 15
ATLANTIC RICHFIELD COMPANY 4 0 2 0 0 1 1 0 0 0 0 0 1 0 2 0 1 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 15
EXXON RESEARCH + ENGINEERING CO. 1 1 0 2 3 1 0 0 0 0 3 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 15
ARCO CHEMICAL TECHNOLOGY, L.P. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 2 0 1 2 1 2 3 0 0 14
LUMMUS COMPANY 2 1 1 1 0 1 1 1 0 0 0 0 1 1 0 0 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
SNAM PROGETTI S.P.A. 0 0 0 0 0 2 2 3 1 0 1 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 14
UNION CARBIDE CORPORATION 1 0 1 0 1 2 0 0 0 0 2 1 0 0 1 0 0 1 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
EASTMAN KODAK COMPANY 0 0 1 0 0 1 1 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 1 0 3 1 0 1 0 0 0 0 0 0 0 0 13
HALCON INTERNATIONAL INC. 4 0 0 1 1 1 1 1 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
KRUPP KOPPERS GMBH 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 4 0 0 0 0 1 0 0 0 0 0 0 13
BP CHEMICALS LIMITED 1 0 0 0 1 1 0 0 0 0 1 0 3 2 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 12
DAIKIN INDUSTRIES LIMITED 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2 1 0 1 2 1 1 12
MOBIL OIL CORP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 1 0 3 1 0 0 1 0 1 1 1 0 0 0 0 12
ROHM AND HAAS COMPANY 0 0 0 0 0 1 0 1 1 1 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 1 0 2 0 0 0 0 0 0 12
SUMITOMO CHEMICAL COMPANY, LIMITED 1 0 0 0 0 0 1 0 0 0 0 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 1 12
PPG INDUSTRIES INC. 1 0 0 1 0 1 1 0 2 1 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
CHEVRON RESEARCH & TECHNOLOGY CO. 1 2 2 1 0 0 0 0 2 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 10
GENERAL ELECTRIC COMPANY 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 1 0 0 1 2 0 0 0 0 1 1 0 0 10
MITSUI TOATSU CHEMICALS INC. 0 0 1 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 2 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 10
WESTINGHOUSE ELECTRIC CORP. 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
ALCOA INC. 0 1 2 1 1 2 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
ETHYL CORPORATION 1 0 0 1 0 1 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 9
NIPPON ZEON CO., LTD. 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 9
AIR PRODUCTS AND CHEMICALS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 2 0 1 1 0 0 0 0 0 1 0 0 0 0 8
GOODYEAR TIRE + RUBBER COMPANY 0 2 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 8
GULF RESEARCH AND DEVELOPMENT COMPANY 0 1 0 3 0 0 0 0 2 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
PETRO-TEX CHEMICAL CORPORATION 0 2 1 1 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
SOCIETA ITALIANA RESINE S.I.R. S.P.A. 0 0 0 0 2 1 1 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
SOLVAY (SOCIETE ANONYME) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 1 1 0 0 0 1 0 1 1 8
BADGER COMPANY, INC. 2 1 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
CHEMISCHE WERKE HULS, AG 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
EASTMAN CHEMICAL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 1 1 0 7
FMC CORPORATION 0 0 0 2 0 0 0 1 0 1 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
HUELS AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 0 1 3 0 0 0 0 7
NALCO CHEMICAL COMPANY 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 7
WACKER-CHEMIE GMBH 0 0 0 0 0 0 0 1 0 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 7
AMOCO CORPORATION 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
ASHLAND OIL INC. 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
DAICEL CHEMICAL INDUSTRIES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 0 1 0 0 0 0 0 6
DOW CORNING CORPORATION 0 0 0 0 1 1 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 6
ELF ATOCHEM NORTH AMERICA, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 2 0 0 0 0 6
HUNTSMAN PETROCHEMICAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 1 0 1 6
MITSUBISHI CHEMICAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 2 0 0 0 0 0 6
PRODUITS CHIMIQUES UGINE KUHLMANN 2 0 0 0 0 0 2 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
TEXACO CHEMICAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 3 0 0 0 0 0 0 0 6
UBE INDUSTRIES LTD. 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 1 1 0 6
UNITED STATES OF AMERICA, DEPARTMENT OF THE INTERIOR 2 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
USX CORPORATION 0 0 0 0 0 0 0 0 0 2 1 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
AQUA-CHEM, INC. 1 1 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
B. F. GOODRICH CO. 0 1 0 0 0 0 0 0 0 1 0 0 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
CHEMICAL RESEARCH AND LICENSING COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 2 0 0 0 0 0 0 0 5
CHISSO CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 0 5
CONOCO, INC. 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 5
DEUTSCHE GOLD- UND SILBER-SCHEIDEANSTALT VORMALS ROESSLER 0 0 1 1 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
ELF ATOCHEM S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 1 0 5
FRIED. KRUPP HUTTENWERKE AG 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HALCON RESEARCH AND DEVELOPMENT CORP. 0 0 0 0 0 0 0 0 0 0 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HANOVER RESEARCH CORPORATION 0 0 0 0 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN(HENKEL KGAA) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 5
KOCH ENGINEERING CO., INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 0 1 0 0 1 0 0 0 0 5
MITSUBISHI GAS-CHEMICAL COMPANY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 5
NATIONAL DISTILLERS AND CHEMICAL CORPORATION 0 0 0 1 0 0 0 0 0 0 0 0 2 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
NIPPON SHOKUBAI KAGAKU KOGYO CO. LTD. 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
TEXACO INC. 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 5
VULCAN MATERIALS COMPANY 0 0 0 2 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
W. R. GRACE & CO.-CONN. 1 2 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5


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