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

Patenting In Technology Classes,
Breakout By Organization

Count of 2004 - 2008 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 277, Seal for a Joint or Juncture

( 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 2004 2005 2006 2007 2008 Total
~INDIVIDUALLY OWNED PATENT 20 12 12 8 5 57
DANA CORPORATION 13 9 3 5 0 30
ISHIKAWA GASKET CO. LTD. 6 3 11 5 2 27
FEDERAL-MOGUL WORLD WIDE, INC. 5 2 8 3 8 26
EAGLE INDUSTRY CO., LTD. 8 6 5 3 2 24
GENERAL ELECTRIC COMPANY 11 5 1 1 1 19
ELRING KLINGER AG 4 3 3 1 4 15
FREUDENBERG-NOK GENERAL PARTNERSHIP 2 1 7 3 2 15
NOK CORPORATION 6 2 3 1 3 15
UNITED TECHNOLOGIES CORPORATION 0 3 4 5 3 15
CARL FREUDENBERG KG 4 3 3 3 1 14
MITSUBISHI CABLE INDUSTRIES, LTD. 2 1 4 3 2 12
ROLLS-ROYCE PLC 2 1 1 2 4 10
ALSTOM TECHNOLOGY LTD 2 5 1 0 1 9
NICHIAS CORPORATION 2 4 0 1 2 9
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 2 4 2 0 0 8
MTU AERO ENGINES GMBH 3 1 1 2 1 8
GENERAL MOTORS CORPORATION 4 1 2 0 0 7
HONEYWELL INTERNATIONAL INC. 2 2 1 0 2 7
MAHLE GMBH 1 0 1 3 2 7
MITSUBISHI HEAVY INDUSTRIES, LTD. 2 1 2 1 1 7
TOYODA GOSEI KABUSHIKI KAISHA 1 1 1 3 1 7
A. W. CHESTERTON COMPANY 3 1 1 0 1 6
DELPHI TECHNOLOGIES, INC. 3 1 2 0 0 6
EAGLE ENGINEERING AEROSPACE CO., LTD. 1 2 2 1 0 6
FEDERAL-MOGUL SEALING SYSTEMS GMBH 2 1 2 0 1 6
NSK LIMITED 2 1 1 2 0 6
PARKER-HANNIFIN CORPORATION 1 1 2 0 2 6
UCHIYAMA MANUFACTURING CORP. 2 3 1 0 0 6
DICHTUNGSTECHNIK G. BRUSS GMBH & CO. KG 2 3 0 0 0 5
GARLOCK SEALING TECHNOLOGIES LLC 1 1 0 1 2 5
JAPAN METAL GASKET CO., LTD. 1 0 3 0 1 5
NIPPON PISTON RING CO., LTD. 3 1 1 0 0 5
RIKEN CORPORATION 1 0 2 2 0 5
SIEMENS WESTINGHOUSE POWER CORPORATION 0 3 2 0 0 5
TEIJIN SEIKI CO. LTD. 1 0 2 1 1 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
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/


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