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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 1998 - 2002 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 502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making

( 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 1998 1999 2000 2001 2002 Total
PHILLIPS PETROLEUM COMPANY 13 17 31 15 21 97
~Individually Owned Patent 12 16 18 10 14 70
BASF AKTIENGESELLSCHAFT 8 10 19 11 10 58
INSTITUT FRANCAIS DU PETROLE 11 5 14 13 6 49
EXXON RESEARCH + ENGINEERING CO. 16 13 9 5 0 43
DOW CHEMICAL COMPANY 8 4 9 7 11 39
EXXON CHEMICALS PATENTS INC. 7 9 14 6 0 36
UOP 7 11 6 5 7 36
E. I. DU PONT DE NEMOURS AND COMPANY 2 6 10 9 8 35
EXXONMOBIL CHEMICAL PATENTS INC. 0 0 0 8 26 34
BAYER AKTIENGESELLSCHAFT 4 7 3 8 9 31
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION 4 6 10 2 7 29
SUMITOMO CHEMICAL COMPANY, LIMITED 4 0 6 5 9 24
ENGELHARD CORPORATION 1 8 7 4 3 23
EQUISTAR CHEMICALS, LP 0 1 7 12 3 23
FINA TECHNOLOGY, INC. 7 4 2 6 4 23
MOBIL OIL CORP. 5 5 9 2 1 22
W. R. GRACE & CO.-CONN. 3 5 3 6 5 22
BP CHEMICALS LIMITED 7 1 3 2 8 21
SHELL OIL COMPANY 5 0 3 6 6 20
GENERAL ELECTRIC COMPANY 4 1 2 4 8 19
TOYOTA JIDOSHA K.K. 1 5 6 3 3 18
ARCO CHEMICAL TECHNOLOGY, L.P. 8 6 2 0 1 17
CHINA PETROCHEMICAL DEVELOPMENT CORP. 3 2 6 2 4 17
ENICHEM, S.P.A. 4 4 2 4 2 16
INTEVEP, S.A. 7 3 2 1 2 15
MAZDA MOTOR CORPORATION 3 2 4 3 3 15
DEGUSSA AKTIENGESELLSCHAFT 2 4 0 4 4 14
FINA RESEARCH S.A. 0 1 4 5 4 14
SAUDI BASIC INDUSTRIES CORPORATION 0 0 8 1 5 14
CORNING INCORPORATED 1 2 2 5 3 13
EASTMAN CHEMICAL CO., LTD. 1 0 3 5 4 13
NIPPON SHOKUBAI CO., LTD. 0 2 3 3 5 13
STANDARD OIL COMPANY 3 4 2 0 4 13
AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 3 1 7 1 0 12
AKZO NOBEL NV 0 4 3 1 4 12
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 3 3 1 4 1 12
MONTELL TECHNOLOGY COMPANY BV 2 3 4 3 0 12
TARGOR GMBH 3 2 5 2 0 12
BASELL TECHNOLOGY COMPANY B.V. 0 0 0 3 8 11
MITSUI CHEMICALS, INCORPORATED 0 2 4 3 2 11
ALBEMARLE CORPORATION 1 2 4 2 1 10
CELANESE INTERNATIONAL CORPORATION 1 2 4 2 1 10
NIPPON OIL COMPANY LTD. 6 1 3 0 0 10
SOLVAY POLYOLEFINS EUROPE -- BELGIUM (SOCIETE ANONYME 2 3 1 1 3 10
WESTVACO CORPORATION 3 2 2 2 1 10
BP AMOCO CORPORATION 0 4 4 1 0 9
DEGUSSA-HUELS AKTIENGESELLSCHAFT 0 3 2 3 1 9
MITSUBISHI CHEMICAL CORPORATION 0 5 1 0 3 9
UNIVATION TECHNOLOGIES LLC 0 1 0 3 5 9
ASAHI KASEI KOGYO KABUSHIKI KAISHA 0 1 3 2 2 8
BOREALIS GMBH 0 3 4 1 0 8
FORD GLOBAL TECHNOLOGIES, INC. 1 1 2 3 1 8
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 2 2 1 2 1 8
HYPERION CATALYSIS INTERNATIONAL, INC. 2 1 2 1 2 8
NISSAN MOTOR COMPANY, LIMITED 2 1 3 0 2 8
NOVA CHEMICALS (INTERNATIONAL) S.A. 0 0 0 4 4 8
SAMSUNG GENERAL CHEMICALS CO., LTD. 1 0 2 4 1 8
SCIENTIFIC DESIGN COMPANY, INC. 2 4 1 1 0 8
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 3 0 1 1 3 8
AIR PRODUCTS AND CHEMICALS, INC. 2 1 2 0 2 7
ASEC MANUFACTURING, A GENERAL PARTNERSHIP 0 2 4 1 0 7
BASELL POLYOLEFIN GMBH 0 0 0 2 5 7
BRIDGESTONE CORPORATION 0 1 1 4 1 7
CELANESE GMBH 0 3 3 1 0 7
DAICEL CHEMICAL INDUSTRIES LTD. 1 3 1 1 1 7
ELF ATOCHEM S.A. 0 1 1 5 0 7
EUROPEENNE DE RETRAITEMENT DE CATALYSEURS (EURECAT) 1 2 2 1 1 7
JAPAN POLYOLEFINS CO., LTD. 1 2 2 1 1 7
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY 0 1 3 3 0 7
MITSUI PETROCHEMICAL INDUSTRIES LTD. 6 1 0 0 0 7
RHONE-POULENC CHIMIE 3 1 3 0 0 7
SOLVAY (SOCIETE ANONYME) 2 1 2 1 1 7
TOHO TITANIUM COMPANY LIMITED 0 3 1 3 0 7
TOSOH CORPORATION 3 1 1 0 2 7
BOREALIS HOLDING A/S 1 2 1 2 0 6
CALIFORNIA INSTITUTE OF TECHNOLOGY, INC. 2 1 2 1 0 6
DSM N.V. 0 1 1 2 2 6
HOECHST AKTIENGESELLSCHAFT 5 1 0 0 0 6
IDEMITSU KOSAN COMPANY LIMITED 1 1 2 1 1 6
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO 0 1 1 2 2 6
MICHIGAN STATE UNIVERSITY 3 0 0 0 3 6
NORTHWESTERN UNIVERSITY 2 2 1 1 0 6
RHODIA CHIMIE 0 1 1 2 2 6
RIKEN CORPORATION 4 1 1 0 0 6
BATTELLE MEMORIAL INSTITUTE 0 1 0 1 3 5
CHEVRON U.S.A. INC. 2 1 2 0 0 5
CIBA SPECIALTY CHEMICALS CORPORATION 0 2 2 1 0 5
CONOCO, INC. 0 0 0 3 2 5
DELPHI TECHNOLOGIES, INC. 0 0 0 0 5 5
ENIRICERCHE S.P.A. 2 1 2 0 0 5
EXXON MOBIL OIL CORPORATION 0 0 0 0 5 5
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 0 1 2 2 0 5
JAPAN ENERGY CORPORATION 0 0 1 1 3 5
PENN STATE RESEARCH FOUNDATION, INC. 0 0 1 2 2 5
RESEARCH TRIANGLE INSTITUTE 1 3 0 1 0 5
ROHM AND HAAS COMPANY 0 0 0 0 5 5
SIEMENS AKTIENGESELLSCHAFT 0 2 1 1 1 5
TOTAL RAFFINAGE DISTRIBUTION S.A 0 1 0 2 2 5


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