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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 252, Compositions

( 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 2001 2002 2003 2004 2005 Total
~Individually Owned Patent 39 19 21 30 15 124
TDK CORPORATION 16 17 12 8 5 58
MURATA MANUFACTURING CO., LTD. 10 19 12 4 2 47
GENERAL ELECTRIC COMPANY 8 5 9 9 6 37
E. I. DU PONT DE NEMOURS AND COMPANY 3 3 5 10 10 31
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 4 11 7 5 4 31
FUJI PHOTO FILM CO., LTD 5 8 8 6 3 30
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG 4 2 7 10 4 27
SUMITOMO CHEMICAL COMPANY, LIMITED 0 1 5 14 5 25
3M INNOVATIVE PROPERTIES COMPANY 7 4 6 2 5 24
CHISSO CORPORATION 17 2 1 3 1 24
HONEYWELL INTERNATIONAL INC. 0 6 4 8 3 21
INTERNATIONAL BUSINESS MACHINES CORPORATION 9 2 6 3 1 21
MICRON TECHNOLOGY, INC. 1 2 10 5 3 21
BASF AKTIENGESELLSCHAFT 1 5 3 9 2 20
BAYER AKTIENGESELLSCHAFT 4 6 2 5 2 19
OSRAM SYLVANIA INC. 3 2 7 4 0 16
SEIKO EPSON CORPORATION 1 3 4 1 7 16
CLARIANT GMBH 5 2 3 0 5 15
CIBA SPECIALTY CHEMICALS CORPORATION 3 4 1 4 2 14
DELPHI TECHNOLOGIES, INC. 2 1 4 6 1 14
PROCTER + GAMBLE COMPANY 0 3 6 4 1 14
IDEMITSU KOSAN COMPANY LIMITED 4 6 1 0 2 13
SAMSUNG SDI CO., LTD. 1 4 4 2 2 13
ADVANCED TECHNOLOGY MATERIALS, INC. 3 1 2 4 2 12
ASHLAND INC. 5 2 1 2 1 11
CORNING INCORPORATED 2 0 6 3 0 11
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 2 0 4 4 1 11
CANON KABUSHIKI KAISHA 0 3 1 4 2 10
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 2 4 2 2 0 10
NIPPON MITSUBISHI OIL CORPORATION 4 3 2 1 0 10
RHODIA CHIMIE 3 2 2 2 1 10
SEARS PETROLEUM & TRANSPORT CORP. 1 2 3 3 1 10
SONY CORPORATION 5 1 0 2 2 10
UNITED STATES OF AMERICA, NAVY 2 2 3 3 0 10
XEROX CORPORATION 0 3 1 3 3 10
BRIDGESTONE CORPORATION 1 3 2 2 1 9
CABOT MICROELECTRONICS CORP. 2 1 3 1 2 9
EASTMAN KODAK COMPANY 1 2 2 3 1 9
NGK INSULATORS LTD. 2 1 3 1 2 9
SUPERIOR MICROPOWDERS, LLC 5 0 4 0 0 9
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 2 0 4 1 2 9
AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 1 3 4 0 0 8
ASAHI GLASS COMPANY, LTD. 1 2 3 0 2 8
ASTARIS LLC 1 1 2 2 2 8
ATOFINA CHEMICALS, INC. 1 2 2 3 0 8
CHEVRON PHILLIPS CHEMICAL COMPANY LP 0 2 3 3 0 8
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 2 1 3 2 0 8
ROHM AND HAAS COMPANY 4 2 2 0 0 8
SHIN ETSU CHEMICAL CO., LTD. 1 0 2 3 2 8
SHOWA DENKO KABUSHIKI KAISHA 0 1 3 3 1 8
SUMITOMO METAL MINING COMPANY LIMITED 1 1 3 1 2 8
BAKER HUGHES INCORPORATED 0 2 4 0 1 7
COOPER INDUSTRIES INC. 0 3 2 1 1 7
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH 0 3 0 2 2 7
CRYOVAC, INC. 5 1 0 0 1 7
DAIKIN INDUSTRIES LIMITED 4 1 1 1 0 7
HENKEL CORPORATION 6 0 1 0 0 7
HYDRO-QUEBEC 2 1 2 0 2 7
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 4 3 0 7
MITSUBISHI GAS-CHEMICAL COMPANY, INC. 3 1 2 0 1 7
ROLIC AG 0 0 4 3 0 7
AKZO NOBEL NV 1 2 1 1 1 6
COGNIS CORPORATION 0 2 4 0 0 6
CORNING S.A. 3 3 0 0 0 6
FMC CORPORATION 1 0 3 1 1 6
HALDOR TOPSOE A/S 1 0 1 3 1 6
HITACHI METALS LTD. 2 1 2 0 1 6
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 3 2 0 1 0 6
JSR CORPORATION 1 1 3 1 0 6
MASSACHUSETTS INSTITUTE OF TECHNOLOGY 4 1 0 0 1 6
MITSUI CHEMICALS, INCORPORATED 5 0 0 1 0 6
PACTIV CORPORATION 1 1 3 0 1 6
S.A.E.S. GETTERS S.P.A. 2 0 3 1 0 6
SONY CHEMICALS CORPORATION 0 2 3 1 0 6
SUMITOMO SPECIAL METAL COMPANY LIMITED 1 2 1 2 0 6
TOSHIBA CORPORATION 1 1 2 1 1 6
W. R. GRACE & CO.-CONN. 3 1 2 0 0 6
AGFA-GEVAERT N.V. 1 0 1 2 1 5
ALBEMARLE CORPORATION 1 0 2 2 0 5
ALLIED-SIGNAL INC. 2 2 1 0 0 5
CONOCOPHILLIPS COMPANY 0 0 2 1 2 5
CROMPTON CORPORATION 0 0 1 3 1 5
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 3 0 0 2 0 5
DENSO CORPORATION 3 0 1 1 0 5
FERRO-CORPORATION 0 0 2 3 0 5
GENERAL MOTORS CORPORATION 0 0 0 1 4 5
MILLIKEN & COMPANY 0 0 4 1 0 5
MULTISORB TECHNOLOGIES, INC. 0 0 4 0 1 5
NISSHINBO INDUSTRIES, INC. 1 0 4 0 0 5
PPG INDUSTRIES OHIO INC. 2 1 1 1 0 5
PRAXAIR TECHNOLOGY, INC. 0 2 1 1 1 5
QINETIQ LIMITED 0 0 3 2 0 5
SANYO ELECTRIC CO., LTD. 0 1 1 1 2 5
TEXACO INC. 0 1 1 3 0 5
UNIROYAL CHEMICAL COMPANY, INC. 2 0 0 3 0 5


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U.S. Patent and Trademark Office
Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMB pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
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