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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2005 - 2009 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 2005 2006 2007 2008 2009 Total
LUBRIZOL CORPORATION 6 3 4 12 6 31
~INDIVIDUALLY OWNED PATENT 2 6 5 2 4 19
CHEVRON ORONITE COMPANY LLC 4 3 3 5 3 18
INFINEUM INTERNATIONAL LTD 4 6 3 0 2 15
CROMPTON CORPORATION 3 0 2 4 4 13
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 4 1 4 1 3 13
AFTON CHEMICAL CORPORATION 0 1 1 5 5 12
ECOLAB INC. 3 1 1 4 1 10
NIPPON OIL CORPORATION 0 1 1 1 6 9
CHEVRON U.S.A. INC. 1 0 1 1 5 8
IDEMITSU KOSAN COMPANY LIMITED 2 2 0 0 4 8
SOUTHWEST RESEARCH INSTITUTE 0 1 2 3 1 7
CHEMTURA CORPORATION 0 0 0 0 6 6
EXXONMOBIL CHEMICAL PATENTS INC. 1 1 0 1 3 6
SHELL OIL COMPANY 1 1 1 0 3 6
NSK LIMITED 1 1 2 1 0 5


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

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

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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