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

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 2001 2002 2003 2004 2005 Total
~Individually Owned Patent 23 10 14 9 7 63
NTN CORPORATION 12 9 8 10 5 44
GKN LOBRO GMBH 20 6 1 5 4 36
EXEDY CORPORATION 17 4 3 3 1 28
DELPHI TECHNOLOGIES, INC. 3 4 6 10 3 26
GKN AUTOMOTIVE INC. 4 3 8 2 0 17
NSK LIMITED 7 5 1 2 0 15
VISTEON GLOBAL TECHNOLOGIES, INC. 1 1 4 6 2 14
AMERICAN AXLE & MANUFACTURING, INC. 2 2 1 4 4 13
GKN AUTOMOTIVE GMBH 0 1 2 6 4 13
MANNESMANN SACHS AG 4 6 2 1 0 13
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 7 1 4 0 12
GKN WALTERSCHEID GMBH 2 4 1 1 3 11
GKN AUTOMOTIVE AG 4 5 1 0 0 10
LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG 0 1 5 4 0 10
TORQUE-TRACTION TECHNOLOGIES, INC. 0 0 2 4 4 10
VALEO S.A. 8 1 1 0 0 10
DANA CORPORATION 6 2 0 0 1 9
SPICER GELENKWELLENBAU GMBH & CO. KG 1 1 0 3 4 9
UNISIA JECS CORPORATION 5 1 3 0 0 9
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 3 1 1 2 1 8
DENSO CORPORATION 1 0 2 2 3 8
LUK LAMELLEN UND KUPPLUNGSBAU GMBH 6 2 0 0 0 8
SPICER DRIVESHAFT, INC. 1 6 1 0 0 8
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 4 3 0 1 0 8
J. M. VOITH TURBO GMBH & CO. KG 3 1 1 1 1 7
ROHS-VOIGT PATENTVERWERTUNGSGESELLSCHAFT MBH 4 2 0 0 0 6
ELLERGON ANTRIEBSTECHNIK GMBH 4 0 1 0 0 5
GKN DRIVELINE NORTH AMERICA, INC. 0 0 0 3 2 5
HACKFORTH GMBH & CO. KG 1 1 1 0 2 5
TORRINGTON COMPANY 0 1 2 2 0 5


PTMB Contacts

Questions regarding these reports should be directed to:

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

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

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


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