Skip menu navigation Home > Listing of Viewable PTMB Reports > Table of Contents for This Set of Reports


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 384, Bearings

( 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
NSK LIMITED 33 36 39 37 27 172
~Individually Owned Patent 32 25 18 11 13 99
NTN CORPORATION 11 16 21 12 14 74
KOYO SEIKO COMPANY, LTD. 13 11 10 15 7 56
MINEBEA KABUSHIKI-KAISHA (MINEBEA CO., LTD) 6 10 12 7 13 48
THK CO., LTD. 6 5 9 9 3 32
TIMKEN COMPANY 5 9 11 6 0 31
DAIDO METAL COMPANY 7 8 5 2 4 26
NIPPON THOMPSON CO., LTD. 7 2 6 7 4 26
SEAGATE TECHNOLOGY, LLC 5 3 4 8 5 25
TORRINGTON COMPANY 8 6 6 5 0 25
INA WALZLAGER SCHAEFFLER OHG 8 8 4 3 1 24
SANKYO SEIKI MFG. CO., LTD. 2 4 4 5 5 20
SKF INDUSTRIE S.P.A. 5 3 0 6 5 19
INA-SCHAEFFLER KG 0 0 3 6 9 18
SKF FRANCE 5 4 5 2 1 17
SKF GMBH 7 2 6 0 0 15
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 2 5 1 5 1 14
AKTIEBOLAGET SKF 2 0 3 3 4 12
GENERAL ELECTRIC COMPANY 3 3 2 2 0 10
HIWIN TECHNOLOGIES CORP. 1 2 3 1 3 10
ROBERT BOSCH GMBH 3 2 3 1 1 10
EMERSON POWER TRANSMISSION MANUFACTURING, L.P. 1 2 2 2 2 9
HONEYWELL INTERNATIONAL INC. 0 0 3 4 2 9
RELIANCE ELECTRIC TECHNOLOGIES, LLC 2 2 2 0 3 9
SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD. 2 3 2 0 2 9
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 6 1 0 0 1 8
DANA CORPORATION 3 2 1 1 1 8
FEDERAL-MOGUL WORLD WIDE, INC. 1 1 3 1 2 8
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. 3 1 2 2 0 8
DELPHI TECHNOLOGIES, INC. 0 3 1 3 0 7
INTERNATIONAL BUSINESS MACHINES CORPORATION 3 1 2 1 0 7
KS GLEITLAGER GMBH 1 2 2 0 2 7
NIKON CORPORATION 3 3 1 0 0 7
SEIKO INSTRUMENTS INC. 2 4 1 0 0 7
SKF ENGINEERING AND RESEARCH CENTRE, B.V. 1 4 1 1 0 7
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 1 2 0 2 1 6
NGK SPARK PLUG CO., LTD. 1 0 4 1 0 6
CANON KABUSHIKI KAISHA 0 3 1 1 0 5
DELAWARE CAPITAL FORMATION, INC. 0 2 0 2 1 5
DURAMAX MARINE, LLC 1 1 2 0 1 5
EMERSON ELECTRIC CO. 4 0 0 0 1 5
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 1 1 0 1 2 5
NIDEC CORPORATION 1 1 0 1 2 5
NISSAN MOTOR COMPANY, LIMITED 0 0 0 1 4 5
REXROTH STAR GMBH 0 2 2 0 1 5
SCHNEEBERGER HOLDING AG 1 1 2 1 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/


Top

Skip menu navigation Home > Listing of Viewable PTMB Reports > Table of Contents for This Set of Reports