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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 335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets

( 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
GENERAL ELECTRIC COMPANY 7 17 16 37 22 99
EATON CORPORATION 10 13 15 33 14 85
~Individually Owned Patent 9 18 14 17 16 74
SIEMENS AKTIENGESELLSCHAFT 6 14 10 9 4 43
SIEMENS ENERGY & AUTOMATION, INC. 0 7 4 5 4 20
SCHNEIDER ELECTRIC SA 2 7 2 2 6 19
OMRON CORPORATION 3 4 3 1 5 16
SQUARE D COMPANY 3 3 1 6 2 15
FUJI ELECTRIC CO., LTD. 0 3 2 2 6 13
UNITED STATES OF AMERICA, ARMY 1 4 3 2 1 11
VALEO EQUIPEMENTS ELECTRIQUES MOTEUR 2 5 1 3 0 11
DURASWITCH INDUSTRIES, INC. 0 2 4 1 3 10
MATSUSHITA ELECTRIC WORKS, LTD. 1 1 2 3 3 10
EH-SCHRACK COMPONENTS AKTIENGESELLSCHAFT 3 3 2 1 0 9
MITSUBISHI DENKI KABUSHIKI KAISHA 1 1 1 3 3 9
FEV MOTORENTECHNIK GMBH & CO. KG 1 2 2 3 0 8
NEC CORPORATION 0 3 2 1 2 8
NILES PARTS CO., LTD. 0 4 4 0 0 8
SIEMENS ELECTROMECHANICAL COMPONENTS, INC. 3 4 1 0 0 8
DENSO CORPORATION 0 2 1 0 4 7
FUJITSU TAKAMISAWA COMPONENT LIMITED 0 4 0 0 3 7
SIEMENS ELECTROMECHANICAL COMPONENTS GMBH & CO. KG 0 0 6 1 0 7
U.S. PHILIPS CORPORATION 1 4 2 0 0 7
CATERPILLAR INC. 2 3 0 0 1 6
HITACHI, LTD 2 0 1 2 1 6
ROBERT BOSCH GMBH 0 1 1 2 2 6
SIEMENS AUTOMOTIVE CORPORATION 0 0 5 0 1 6
SUMITOMO SPECIAL METAL COMPANY LIMITED 0 0 0 5 1 6
AMERICAN SUPERCONDUCTOR CORPORATION 2 2 1 0 0 5
MOELLER GMBH 0 0 0 2 3 5
NEW YORK UNIVERSITY 2 0 0 2 1 5
SHIN ETSU CHEMICAL CO., LTD. 1 2 1 0 1 5
SONY CORPORATION 3 1 0 1 0 5
THOMSON TUBES & DISPLAYS, S.A. 0 0 5 0 0 5
TYCO ELECTRONICS LOGISTICS AG 0 0 1 3 1 5


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
PK3- Suite 441; P.O Box 1450
Alexandria VA 22313

tel: (703) 306-2600
fax: (703) 306-2737
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
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