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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 464, Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts

( 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
NTN CORPORATION 10 5 13 9 12 49
~INDIVIDUALLY OWNED PATENT 9 7 11 3 3 33
GKN DRIVELINE NORTH AMERICA, INC. 3 2 12 10 4 31
DELPHI TECHNOLOGIES, INC. 10 3 4 0 6 23
AMERICAN AXLE & MANUFACTURING, INC. 4 4 7 2 5 22
GKN AUTOMOTIVE GMBH 6 4 4 2 0 16
DENSO CORPORATION 2 3 5 2 2 14
TORQUE-TRACTION TECHNOLOGIES, INC. 4 4 6 0 0 14
EXEDY CORPORATION 3 2 1 6 1 13
NSK LIMITED 2 0 4 1 5 12
SPICER GELENKWELLENBAU GMBH & CO. KG 3 4 3 0 1 11
GKN LOBRO GMBH 5 4 1 0 0 10
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 4 0 1 1 3 9
GKN WALTERSCHEID GMBH 1 3 1 2 1 8
TORQUE-TRACTION TECHNOLOGIES LLC 0 0 5 1 2 8
VISTEON GLOBAL TECHNOLOGIES, INC. 6 2 0 0 0 8
GKN DRIVELINE INTERNATIONAL GMBH 0 0 0 3 4 7
LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG 4 0 0 2 1 7
AISIN SEIKI KABUSHIKI KAISHA 0 1 1 1 3 6
HYUNDAI MOTOR COMPANY 0 0 1 2 3 6
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 2 1 2 0 0 5
GKN DRIVELINE DEUTSCHLAND GMBH 0 2 0 1 2 5
TOYODA GOSEI KABUSHIKI KAISHA 1 0 1 0 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
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/


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