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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 477, Interrelated Power Delivery Controls, Including Engine Control

( 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
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 23 17 15 7 26 88
NISSAN MOTOR COMPANY, LIMITED 12 20 32 15 7 86
TOYOTA JIDOSHA K.K. 22 21 16 7 16 82
AISIN AW CO., LTD. 25 14 7 5 3 54
HYUNDAI MOTOR CO., LTD. 13 21 3 5 10 52
EATON CORPORATION 5 7 15 6 14 47
GENERAL MOTORS CORPORATION 6 4 6 7 7 30
HITACHI, LTD 9 3 5 10 3 30
MAZDA MOTOR CORPORATION 13 9 4 3 1 30
LUK GETRIEBE-SYSTEME GMBH 3 10 7 5 3 28
ZAHNRADFABRIK FRIEDRICHSHAFEN AG 5 4 6 6 5 26
JATCO CORPORATION 9 14 1 1 0 25
FORD GLOBAL TECHNOLOGIES, INC. 2 1 0 10 10 23
ROBERT BOSCH GMBH 2 4 5 3 5 19
MITSUBISHI DENKI KABUSHIKI KAISHA 1 1 4 3 8 17
~Individually Owned Patent 5 4 4 1 3 17
CATERPILLAR INC. 4 2 4 1 4 15
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 1 6 2 4 13
CUMMINS ENGINE CO., INC. 1 3 5 2 1 12
DAIMLERCHRYSLER CORPORATION 0 0 8 1 1 10
AISIN SEIKI KABUSHIKI KAISHA 3 1 3 1 1 9
BAYERISCHE MOTOREN WERKE AG 0 2 0 3 4 9
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA 2 3 1 1 2 9
CHRYSLER MOTORS CORPORATION 2 2 3 0 0 7
DENSO CORPORATION 0 3 3 1 0 7
ISUZU MOTORS LIMITED 0 0 4 1 2 7
MERITOR HEAVY VEHICLE SYSTEMS, LLC 3 4 0 0 0 7
TRANSMISSIONS TSP, S.A. DE C.V. 0 0 1 5 1 7
UNISIA JECS CORPORATION 3 4 0 0 0 7
DAIMLER-BENZ AKTIENGESELLSCHAFT 5 1 0 0 0 6
FUJI JUKOGYO KABUSHIKI KAISHA 1 1 0 4 0 6
J. M. VOITH TURBO GMBH & CO. KG 2 1 1 1 0 5
JATCO TRANSTECHNOLOGY LTD. 0 0 0 0 5 5
LUK LAMELLEN UND KUPPLUNGSBAU GMBH 0 0 0 0 5 5
SIEMENS AKTIENGESELLSCHAFT 2 1 1 1 0 5
SUZUKI MOTOR CORPORATION 0 1 0 2 2 5
ZF BATAVIA, L.L.C. 0 0 0 3 2 5


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