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

Patenting In Technology Classes,
Breakout By Organization

Count of 2007 - 2011 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 2007 2008 2009 2010 2011 Total
NOK CORPORATION 1 3 3 15 13 35
~INDIVIDUALLY OWNED PATENT 8 5 2 6 8 29
FREUDENBERG-NOK GENERAL PARTNERSHIP 3 2 1 10 10 26
ISHIKAWA GASKET CO. LTD. 5 2 3 5 5 20
FEDERAL-MOGUL WORLD WIDE, INC. 3 8 0 2 6 19
ELRING KLINGER AG 1 4 2 6 4 17
EAGLE INDUSTRY CO., LTD. 3 2 1 3 7 16
UNITED TECHNOLOGIES CORPORATION 5 3 0 3 5 16
GENERAL ELECTRIC COMPANY 1 1 3 5 5 15
ROLLS-ROYCE PLC 2 4 0 3 3 12
AES ENGINEERING LIMITED 0 0 0 7 4 11
MTU AERO ENGINES GMBH 2 1 2 2 2 9
CARL FREUDENBERG KG 3 1 0 2 1 7
MITSUBISHI CABLE INDUSTRIES, LTD. 3 2 0 2 0 7
SKF USA INC. 0 0 1 3 3 7
TOYODA GOSEI KABUSHIKI KAISHA 3 1 1 1 1 7
A. W. CHESTERTON COMPANY 0 1 1 3 1 6
EATON CORPORATION 1 1 0 1 3 6
GM GLOBAL TECHNOLOGY OPERATIONS, INC. 1 0 0 3 2 6
NICHIAS CORPORATION 1 2 1 1 1 6
NIPPON PILLAR PACKING CO. LTD. 1 1 0 2 2 6
BAKER HUGHES INCORPORATED 0 1 0 1 3 5
DANA CORPORATION 5 0 0 0 0 5
GARLOCK SEALING TECHNOLOGIES LLC 1 2 1 1 0 5
HONEYWELL INTERNATIONAL INC. 0 2 1 1 1 5
KALSI ENGINEERING, INC. 0 0 1 2 2 5
MAHLE GMBH 3 2 0 0 0 5
STEIN SEAL COMPANY 0 0 0 0 5 5
UCHIYAMA MANUFACTURING CORP. 0 0 0 2 3 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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