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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 1998 - 2002 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 251, Valves and Valve Actuation

( 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 1998 1999 2000 2001 2002 Total
~Individually Owned Patent 39 43 49 35 44 210
ROBERT BOSCH GMBH 8 3 21 8 11 51
CATERPILLAR INC. 3 3 4 2 3 15
FISHER CONTROLS INTERNATIONAL, INC. 5 7 2 0 0 14
SLOAN VALVE COMPANY 1 5 3 1 4 14
AISIN SEIKI KABUSHIKI KAISHA 5 1 2 1 1 10
EATON CORPORATION 1 1 3 3 2 10
SIEMENS CANADA LTD. 0 4 2 1 3 10
SMC CORPORATION 2 2 1 2 3 10
DENSO CORPORATION 0 2 3 1 3 9
MITSUBISHI DENKI KABUSHIKI KAISHA 1 1 0 2 4 8
SIEMENS AKTIENGESELLSCHAFT 1 1 3 3 0 8
SMC KABUSHIKI KAISHA 1 0 1 3 3 8
VAT HOLDING AG 0 2 1 0 5 8
XEROX CORPORATION 0 3 4 0 1 8
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 0 4 1 2 7
DELPHI TECHNOLOGIES, INC. 0 0 0 2 5 7
FORD GLOBAL TECHNOLOGIES, INC. 1 0 2 4 0 7
GENERAL MOTORS CORPORATION 2 2 2 1 0 7
WESTINGHOUSE AIR BRAKE COMPANY 1 2 2 2 0 7
BORG-WARNER AUTOMOTIVE, INC. 3 2 1 0 0 6
DANFOSS A/S 1 3 1 1 0 6
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 2 2 1 0 1 6
NEW YORK AIR BRAKE COMPANY 0 2 2 2 0 6
PARKER-HANNIFIN CORPORATION 3 1 0 0 2 6
SIEMENS ELEMA AB 1 1 3 0 1 6
APPLIED MATERIALS, INC. 0 0 3 2 0 5
BAKER HUGHES INCORPORATED 1 3 1 0 0 5
BURKERT WERKE GMBH & CO. 1 1 2 0 1 5
COOPER CAMERON CORPORATION, INC. 1 1 0 3 0 5
CUMMINS ENGINE CO., INC. 0 1 3 1 0 5
EMERSON ELECTRIC CO. 3 1 1 0 0 5
EMHART INC. 1 4 0 0 0 5
FMC CORPORATION 3 1 0 0 1 5
FRIEDRICH GROHE AKTIENGESELLSCHAFT 2 1 1 0 1 5
FUJIKIN INC. 2 2 1 0 0 5
FUJIKOKI CORPORATION 1 1 2 1 0 5
KOHLER CO. 1 1 0 3 0 5
MANNESMANN REXROTH AG 0 4 1 0 0 5
MASCO CORP. OF INDIANA 0 2 0 3 0 5
NOK CORPORATION 0 2 1 1 1 5
RYMED TECHNOLOGIES, INC. 2 1 1 1 0 5
SIEMENS AUTOMOTIVE CORPORATION 1 1 2 1 0 5
SWAGELOK COMPANY 0 0 1 2 2 5


PTMD Contacts

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U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
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Alexandria VA 22313

tel: (703) 306-2600
fax: (703) 306-2737
email: oeip@uspto.gov

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