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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 2000 - 2004 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 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 9 23 10 13 9 64
NTN CORPORATION 2 12 9 8 10 41
GKN LOBRO GMBH 2 20 6 1 5 34
EXEDY CORPORATION 4 15 4 3 3 29
DELPHI TECHNOLOGIES, INC. 1 3 4 6 10 24
GKN AUTOMOTIVE INC. 1 4 3 8 2 18
MANNESMANN SACHS AG 3 4 6 2 1 16
NSK LIMITED 1 7 5 1 2 16
GKN AUTOMOTIVE AG 5 4 5 1 0 15
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 2 0 7 1 4 14
DANA CORPORATION 5 6 2 0 0 13
VALEO S.A. 3 8 1 0 0 12
VISTEON GLOBAL TECHNOLOGIES, INC. 0 1 1 4 6 12
AMERICAN AXLE & MANUFACTURING, INC. 2 2 2 1 4 11
GKN WALTERSCHEID GMBH 3 2 4 1 1 11
LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG 0 0 1 5 4 10
LUK LAMELLEN UND KUPPLUNGSBAU GMBH 2 6 2 0 0 10
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 2 4 3 0 1 10
UNISIA JECS CORPORATION 2 4 1 3 0 10
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 2 3 1 1 2 9
GKN AUTOMOTIVE GMBH 0 0 1 2 6 9
SPICER DRIVESHAFT, INC. 0 1 6 1 0 8
J. M. VOITH TURBO GMBH & CO. KG 0 3 1 1 1 6
ROHS-VOIGT PATENTVERWERTUNGSGESELLSCHAFT MBH 1 3 2 0 0 6
TORQUE-TRACTION TECHNOLOGIES, INC. 0 0 0 2 4 6
DENSO CORPORATION 0 1 0 2 2 5
ELLERGON ANTRIEBSTECHNIK GMBH 0 4 0 1 0 5
FORD GLOBAL TECHNOLOGIES, INC. 2 3 0 0 0 5
SPICER GELENKWELLENBAU GMBH & CO. KG 0 1 1 0 3 5
TORRINGTON COMPANY 0 0 1 2 2 5


PTMD Contacts

Questions regarding these reports should be directed to:

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

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

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


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