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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 423, Chemistry of Inorganic Compounds

( 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
~Individually Owned Patent 27 29 24 40 35 155
ENGELHARD CORPORATION 5 10 6 7 11 39
E. I. DU PONT DE NEMOURS AND COMPANY 7 9 1 8 3 28
INSTITUT FRANCAIS DU PETROLE 5 3 9 6 5 28
CHEVRON U.S.A. INC. 6 4 6 3 8 27
BASF AKTIENGESELLSCHAFT 2 4 10 7 3 26
UOP 3 10 4 4 5 26
FORD GLOBAL TECHNOLOGIES, INC. 7 5 7 3 2 24
DEGUSSA-HUELS AKTIENGESELLSCHAFT 0 2 9 4 7 22
TOYOTA JIDOSHA K.K. 5 7 5 0 5 22
AIR PRODUCTS AND CHEMICALS, INC. 0 5 6 6 2 19
DEGUSSA AKTIENGESELLSCHAFT 4 2 3 3 6 18
SUMITOMO CHEMICAL COMPANY, LIMITED 6 4 5 3 0 18
AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 4 3 3 6 1 17
FMC CORPORATION 3 3 3 4 4 17
BAYER AKTIENGESELLSCHAFT 2 3 4 2 5 16
HALDOR TOPSOE A/S 1 3 5 2 5 16
RHONE-POULENC CHIMIE 5 7 1 2 1 16
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 0 5 5 2 4 16
CABOT CORPORATION 0 2 4 2 7 15
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 0 6 3 4 1 14
MITSUBISHI HEAVY INDUSTRIES CO., LTD. 1 3 2 3 5 14
MOBIL OIL CORP. 6 3 5 0 0 14
NATIONAL SCIENCE COUNCIL 2 2 3 3 4 14
PRAXAIR TECHNOLOGY, INC. 0 1 6 4 3 14
BOC GROUP, INC. 1 3 4 2 3 13
SHOWA DENKO KABUSHIKI KAISHA 3 0 3 3 4 13
METALLGESELLSCHAFT AKTIENGESELLSCHAFT 3 2 3 2 2 12
MICHIGAN STATE UNIVERSITY 6 2 2 1 1 12
ALLIED-SIGNAL INC. 1 4 1 4 1 11
EXXON CHEMICALS PATENTS INC. 3 4 3 1 0 11
EXXON RESEARCH + ENGINEERING CO. 0 4 6 1 0 11
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO 4 5 0 1 1 11
RHODIA CHIMIE 0 1 1 2 7 11
GOLDENDALE ALUMINUM COMPANY 1 1 1 6 1 10
IMPERIAL CHEMICAL INDUSTRIES PLC 2 2 1 3 2 10
MITSUBISHI GAS-CHEMICAL COMPANY, INC. 4 3 2 1 0 10
SIEMENS AKTIENGESELLSCHAFT 2 0 1 2 5 10
TOSOH CORPORATION 1 2 3 3 1 10
AKZO NOBEL NV 1 1 1 3 3 9
BRITISH NUCLEAR FUELS PLC 4 0 1 0 4 9
GAS RESEARCH INSTITUTE 3 3 2 1 0 9
HENKEL CORPORATION 1 3 2 3 0 9
INTEVEP, S.A. 3 1 2 1 2 9
MITSUBISHI CHEMICAL CORPORATION 2 1 4 1 1 9
XCELLSIS GMBH 0 0 0 6 3 9
ALUMINUM COMPANY OF AMERICA 6 2 0 0 0 8
BATTELLE MEMORIAL INSTITUTE 3 1 1 2 1 8
COMMISSARIAT A L'ENERGIE ATOMIQUE 1 2 1 3 1 8
CORNING INCORPORATED 0 3 1 3 1 8
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 0 2 1 1 4 8
ELF ATOCHEM S.A. 0 2 2 2 2 8
HOECHST AKTIENGESELLSCHAFT 5 2 1 0 0 8
MITSUBISHI JUKOGYO KABUSHIKI KAISHA 4 2 2 0 0 8
SHIN-ETSU HANDOTAI CO., LTD. 0 0 3 3 2 8
THE BOC GROUP PLC 0 2 1 1 4 8
ASEC MANUFACTURING, A GENERAL PARTNERSHIP 2 3 0 2 0 7
COMINCO ENGINEERING SERVICES LTD. 0 3 1 1 2 7
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 1 3 2 1 7
DOW CHEMICAL COMPANY 2 0 4 1 0 7
DOWA MINING CO., LTD. 0 0 3 3 1 7
GENERAL ELECTRIC COMPANY 2 2 1 1 1 7
HERMANN C. STARCK GMBH & CO. KG 0 5 1 0 1 7
HITACHI, LTD 2 0 3 1 1 7
KANSAI ELECTRIC POWER CO. INC. 3 0 2 1 1 7
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 1 0 1 3 2 7
NALCO CHEMICAL COMPANY 4 1 0 0 2 7
SOLVAY FLUOR UND DERIVATE GMBH 0 2 1 2 2 7
STARMET CORPORATION 0 3 4 0 0 7
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 0 0 4 3 7
CALIFORNIA INSTITUTE OF TECHNOLOGY, INC. 0 2 1 1 2 6
DAIMLER-BENZ AKTIENGESELLSCHAFT 1 5 0 0 0 6
ELF EXPLORATION PRODUCTION 0 0 3 1 2 6
JOHNSON MATTHEY PUBLIC LIMITED COMPANY 0 1 0 1 4 6
KAWASAKI JUKOGYO KABUSHIKI KAISHA 1 1 0 3 1 6
MARSULEX ENVIRONMENTAL TECHNOLOGIES, LLC 1 0 1 4 0 6
MASSACHUSETTS INSTITUTE OF TECHNOLOGY 0 2 2 1 1 6
NANOGRAM CORPORATION 0 1 3 0 2 6
NIPPON PILLAR PACKING CO. LTD. 0 0 3 3 0 6
NIPPON SANSO K.K. 1 1 1 0 3 6
PHILLIPS PETROLEUM COMPANY 1 1 0 1 3 6
SOLVAY (SOCIETE ANONYME) 0 2 0 3 1 6
ANDRITZ-PATENTVERWALTUNGS-GESELLSCHAFT M.B.H. 0 2 0 2 1 5
CLEAN DIESEL TECHNOLOGIES, INC. 0 2 1 1 1 5
COSMO RESEARCH INSTITUTE 1 2 1 0 1 5
CYPRUS AMAX MINERALS COMPANY 2 1 0 1 1 5
CYTEC TECHNOLOGY CORP. 3 1 1 0 0 5
DOW CORNING CORPORATION 2 0 3 0 0 5
EASTMAN KODAK COMPANY 0 1 2 1 1 5
EBARA CORPORATION 0 2 1 0 2 5
ELECTRIC POWER RESEARCH INSTITUTE, INC. 1 1 1 1 1 5
ENIRICERCHE S.P.A. 0 4 1 0 0 5
HYPERION CATALYSIS INTERNATIONAL, INC. 1 0 0 2 2 5
ICT CO., LTD. 0 1 0 4 0 5
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY 0 2 2 0 1 5
MONSANTO COMPANY, INC. 1 3 0 1 0 5
NGK INSULATORS LTD. 1 0 3 1 0 5
NIPPON CHEMICAL INDUSTRIAL CO., LTD. 0 2 1 1 1 5
NIPPON SHOKUBAI CO., LTD. 1 0 4 0 0 5
NORANDA INC. 0 2 0 0 3 5
NORSK HYDRO ASA 0 2 1 0 2 5
OSRAM SYLVANIA INC. 2 0 2 0 1 5
RIKEN CORPORATION 5 0 0 0 0 5
SAMSUNG DISPLAY DEVICES CO., LTD. 1 2 1 1 0 5
SHELL OIL COMPANY 0 0 2 2 1 5
SHIN ETSU CHEMICAL CO., LTD. 1 3 0 0 1 5
SUMITOMO METAL MINING COMPANY LIMITED 2 2 1 0 0 5
UNITED STATES OF AMERICA, NAVY 0 3 1 1 0 5


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Skip menu navigation Home > PTMD Home > PTMD Listing of Viewable Reports > Table of Contents for This Set of Reports