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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 200, Electricity: Circuit Makers and Breakers

( 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 54 38 20 21 39 172
ALPS ELECTRIC CO., LTD. 5 11 12 22 21 71
EATON CORPORATION 11 25 20 1 12 69
GENERAL ELECTRIC COMPANY 10 10 10 11 20 61
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 11 15 5 16 12 59
NILES PARTS CO., LTD. 20 15 5 0 2 42
SIEMENS ENERGY & AUTOMATION, INC. 4 4 12 8 1 29
ITT MANUFACTURING ENTERPRISES, INC. 3 3 9 7 5 27
SQUARE D COMPANY 10 2 0 8 3 23
SIEMENS AKTIENGESELLSCHAFT 4 4 5 4 4 21
YAZAKI CORP. 2 6 3 5 5 21
TOKAI RIKA DENKI SEISAKUSHO K.K. 4 3 4 5 4 20
MITSUBISHI DENKI KABUSHIKI KAISHA 5 2 2 4 6 19
EMERSON ELECTRIC CO. 8 6 1 1 2 18
HON HAI PRECISION IND. CO., LTD. 0 2 12 3 1 18
SHIN JIUH CORP. 3 5 3 5 2 18
UNITED TECHNOLOGIES AUTOMOTIVE, INC. 12 6 0 0 0 18
SCHNEIDER ELECTRIC SA 1 6 6 2 2 17
TEXAS INSTRUMENTS, INCORPORATED 6 3 3 3 1 16
LEVITON MANUFACTURING CO. INC. 5 7 1 0 2 15
TRW INC. 1 6 2 3 2 14
SILITEK CORPORATION 0 2 4 5 2 13
CHICONY ELECTRONICS CO., LTD. 5 1 2 2 1 11
NEC CORPORATION 1 2 3 2 3 11
ACER PERIPHERALS, INC. 3 2 4 1 0 10
DELPHI TECHNOLOGIES, INC. 0 0 2 1 7 10
HOSIDEN CORPORATION 3 2 1 1 3 10
OMRON CORPORATION 2 2 0 2 4 10
SUMITOMO WIRING SYSTEMS, LTD., CO. 5 3 0 0 1 9
BREED AUTOMOTIVE TECHNOLOGY, INC. 1 1 1 2 3 8
MARQUARDT GMBH 0 1 2 1 4 8
MOTOROLA, INC. 3 3 0 1 1 8
PREH-WERKE GMBH & CO. KG 1 2 2 2 1 8
ASMO CO., LTD. 4 3 0 0 0 7
BROTHER KOGYO KABUSHIKI KAISHA 2 0 2 0 3 7
ERICSSON, INC. 6 1 0 0 0 7
HONEYWELL INTERNATIONAL INC. 0 0 2 2 3 7
MASCHINENFABRIK REINHAUSEN GMBH 2 1 3 0 1 7
METHODE ELECTRONICS, INC. 3 1 1 0 2 7
NOKIA MOBILE PHONES LTD. 1 1 0 2 3 7
U.S. PHILIPS CORPORATION 0 2 3 2 0 7
VALEO ELECTRICAL SYSTEMS, INC. 0 0 1 2 4 7
AISIN SEIKI KABUSHIKI KAISHA 1 2 2 1 0 6
BLACK & DECKER INC. 1 0 3 1 1 6
DENSO CORPORATION 0 4 2 0 0 6
FUJI ELECTRIC CO., LTD. 3 1 0 1 1 6
FUJITSU TAKAMISAWA COMPONENT LIMITED 2 1 1 0 2 6
HONEYWELL INC. 2 1 3 0 0 6
KABUSHIKI KAISHA T AND T 3 0 3 0 0 6
LEOPOLD KOSTAL GMBH & CO. KG 2 2 2 0 0 6
MOLEX INCORPORATED 2 1 1 1 1 6
S & C ELECTRIC CO. 3 1 1 1 0 6
SAMSUNG ELECTRONICS CO., LTD. 0 3 0 1 2 6
DAEWOO ELECTRONICS COMPANY, LTD. 2 2 1 0 0 5
DARFON ELECTRONICS CORP. 0 0 0 1 4 5
DEFOND MANUFACTURING LIMITED 1 0 2 1 1 5
FRANCE/SCOTT FETZER CO. 0 1 2 1 1 5
HANS BERNSTEIN SPEZIALFABRIK FUR SCHALTKONTAKE GMBH & CO. 1 4 0 0 0 5
HEWLETT-PACKARD COMPANY 0 0 1 1 3 5
IDEC IZUMI CORPORATION 0 0 2 3 0 5
ITT AUTOMOTIVE EUROPE GMBH 2 2 0 1 0 5
MATSUSHITA ELECTRIC WORKS, LTD. 0 1 2 2 0 5
PACKARD HUGHES INTERCONNECT COMPANY 4 1 0 0 0 5
TOWER MANUFACTURING CORPORATION 2 1 1 1 0 5
TOYO DENSO KABUSHIKI KAISHA 3 0 1 0 1 5


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