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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 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 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 18 33 38 21 20 130
GENERAL ELECTRIC COMPANY 18 13 17 29 11 88
DANA CORPORATION 3 11 9 13 13 49
ISHIKAWA GASKET CO. LTD. 8 9 4 6 6 33
CATERPILLAR INC. 15 5 1 9 1 31
CARL FREUDENBERG 4 3 6 9 2 24
NIPPON GASKET CO., LTD. 5 4 6 4 1 20
EAGLE INDUSTRY CO., LTD. 1 2 3 4 8 18
NOK CORPORATION 3 5 2 1 6 17
A. W. CHESTERTON COMPANY 8 0 2 1 3 14
FEDERAL-MOGUL WORLD WIDE, INC. 1 4 3 1 5 14
NIPPON PILLAR PACKING CO. LTD. 2 4 3 4 0 13
ELRING KLINGER AG 0 0 4 4 4 12
FREUDENBERG-NOK GENERAL PARTNERSHIP 4 1 3 1 2 11
ROLLS-ROYCE PLC 2 5 0 2 2 11
J.M. CLIPPER CORP. 5 0 3 1 1 10
NIPPON PISTON RING CO., LTD. 0 4 1 2 3 10
UNITED TECHNOLOGIES CORPORATION 4 3 3 0 0 10
FLOWSERVE MANAGEMENT COMPANY 0 4 4 1 0 9
JOHN CRANE, INC. 2 2 1 3 1 9
KALSI ENGINEERING, INC. 3 2 3 1 0 9
MITSUBISHI HEAVY INDUSTRIES, LTD. 0 4 2 1 2 9
JETSEAL, INC. 0 5 1 2 0 8
MANNESMANN SACHS AG 1 3 1 1 2 8
TRW INC. 0 4 2 1 1 8
DRESSER-RAND COMPANY 2 2 1 1 1 7
GENERAL MOTORS CORPORATION 2 1 0 0 4 7
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 2 0 2 1 2 7
HONEYWELL INTERNATIONAL INC. 0 0 2 3 2 7
MASCHINENFABRIK SULZER-BURCKHARDT AG 1 2 4 0 0 7
ROBERT BOSCH GMBH 2 3 2 0 0 7
TEIKOKU PISTON RING CO. LTD. 3 2 1 1 0 7
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 1 3 1 2 0 7
UNITED STATES OF AMERICA, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 2 0 1 1 3 7
DICHTUNGSTECHNIK G. BRUSS GMBH & CO. KG 2 1 0 1 2 6
MITSUBISHI CABLE INDUSTRIES, LTD. 0 1 2 1 2 6
NSK LIMITED 0 1 2 1 2 6
UNITED STATES OF AMERICA, NAVY 0 0 6 0 0 6
BOEING COMPANY 0 1 3 0 1 5
FEDERAL-MOGUL BURSCHEID GMBH 0 1 1 2 1 5
GARLOCK INC. 2 2 1 0 0 5
HILTI AKTIENGESELLSCHAFT 0 0 1 4 0 5
INTERFACE SOLUTIONS, INC. 0 2 0 1 2 5
ITT MANUFACTURING ENTERPRISES, INC. 1 2 1 1 0 5
KOKUSAN PARTS INDUSTRY CO., LTD. 2 3 0 0 0 5
NICHIAS CORPORATION 0 0 2 1 2 5
PARKER-HANNIFIN CORPORATION 0 1 2 1 1 5
RELIANCE ELECTRIC TECHNOLOGIES, LLC 0 2 1 2 0 5
RFT S.P.A. 1 1 0 0 3 5
S & B TECHNICAL PRODUCTS, INC. 1 1 2 1 0 5
SEAGATE TECHNOLOGY, LLC 2 0 1 1 1 5
SKF USA INC. 2 1 1 0 1 5
SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION "S.N.E.C.M.A." 0 2 2 1 0 5
TAIHO KOGYO CO., LTD. 2 1 0 1 1 5
TRANSCOM, INC. 0 1 2 0 2 5


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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

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