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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 2000 - 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 508, Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil 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 2000 2001 2002 2003 2004 Total
LUBRIZOL CORPORATION 17 18 14 14 11 74
~Individually Owned Patent 10 10 7 8 4 39
EXXON CHEMICALS PATENTS INC. 18 10 1 3 0 32
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 2 5 6 9 10 32
INFINEUM INTERNATIONAL LTD 0 2 7 15 8 32
IDEMITSU KOSAN COMPANY LIMITED 8 7 3 3 8 29
ETHYL CORPORATION 7 5 3 6 2 23
EXXON RESEARCH + ENGINEERING CO. 11 7 0 0 0 18
ECOLAB INC. 0 4 2 4 7 17
INFINEUM USA L.P. 4 8 2 1 1 16
CHEVRON ORONITE COMPANY LLC 0 0 2 7 6 15
NIPPON MITSUBISHI OIL CORPORATION 0 4 2 4 1 11
E. I. DU PONT DE NEMOURS AND COMPANY 0 1 2 4 3 10
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 0 4 1 2 3 10
MOBIL OIL CORP. 5 3 1 0 1 10
NSK LIMITED 0 3 3 2 2 10
CHEVRON CHEMICAL COMPANY LLC 4 4 1 0 0 9
CIBA SPECIALTY CHEMICALS CORPORATION 2 1 4 1 1 9
KYODO YUSHI CO., LTD. 2 3 4 0 0 9
R. T. VANDERBILT COMPANY, INC. 3 1 2 1 2 9
SHELL OIL COMPANY 5 0 2 0 2 9
CROMPTON CORPORATION 0 3 1 4 0 8
HENKEL CORPORATION 2 3 2 1 0 8
TONENGENERAL SEKIYU K.K. 0 2 1 4 1 8
NTN CORPORATION 0 2 2 2 1 7
TONEN CORPORATION 3 4 0 0 0 7
CASTROL LIMITED 1 4 0 0 1 6
CLARIANT GMBH 3 1 2 0 0 6
INDIAN OIL CORPORATION, LTD. 0 1 2 3 0 6
LUBRIZOL ADIBIS HOLDINGS (UK) LIMITED 4 2 0 0 0 6
UNIROYAL CHEMICAL COMPANY, INC. 2 1 0 2 1 6
CARGILL, INC. 1 2 2 0 0 5
ELISHA TECHNOLOGIES CO. L.L.C. 3 2 0 0 0 5
SHIN ETSU CHEMICAL CO., LTD. 2 2 0 0 1 5


PTMD Contacts

Questions regarding these reports should be directed to:

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

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

address of PTMD pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


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