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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 192, Clutches and Power-Stop 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
MANNESMANN SACHS AG 3 27 38 16 26 110
EXEDY CORPORATION 11 47 30 13 5 106
VALEO S.A. 28 13 17 23 12 93
~Individually Owned Patent 16 27 18 18 14 93
EATON CORPORATION 12 23 13 7 13 68
FICHTEL + SACHS AG 32 21 3 0 0 56
NSK-WARNER K. K. 9 7 15 6 10 47
LUK LAMELLEN UND KUPPLUNGSBAU GMBH 6 6 10 17 7 46
LUK GETRIEBE-SYSTEME GMBH 4 6 11 12 8 41
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 3 6 6 2 19 36
GENERAL MOTORS CORPORATION 11 8 3 7 3 32
DANA CORPORATION 4 10 5 5 3 27
NTN CORPORATION 3 7 5 4 5 24
BORGWARNER INC. 0 0 6 10 5 21
FORD GLOBAL TECHNOLOGIES, INC. 7 6 3 2 3 21
GKN VISCODRIVE GMBH 1 4 5 4 4 18
NEW VENTURE GEAR, INC. 6 2 5 1 4 18
ZAHNRADFABRIK FRIEDRICHSHAFEN AG 3 3 2 5 5 18
BORG-WARNER AUTOMOTIVE, INC. 3 10 3 0 0 16
TOYOTA JIDOSHA K.K. 8 3 2 1 2 16
DENSO CORPORATION 1 4 3 4 1 13
KOYO SEIKO COMPANY, LTD. 2 1 3 3 4 13
AISIN AW CO., LTD. 4 7 0 0 1 12
MEANS INDUSTRIES 0 4 4 2 2 12
HYUNDAI MOTOR CO., LTD. 2 1 1 2 5 11
WARN INDUSTRIES, INC. 2 2 2 2 3 11
AISIN SEIKI KABUSHIKI KAISHA 4 2 2 2 0 10
JATCO CORPORATION 3 4 3 0 0 10
CASE CORPORATION 4 0 3 1 0 8
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 2 3 3 0 8
FUJIUNIVANCE CO. 0 0 0 3 5 8
INA WALZLAGER SCHAEFFLER OHG 0 1 3 3 1 8
J. M. VOITH TURBO GMBH & CO. KG 2 3 1 1 1 8
NSK LIMITED 0 0 0 4 4 8
SACHS RACE ENGINEERING GMBH 0 0 5 3 0 8
SHIMANO INC. 3 0 1 2 2 8
SKF FRANCE 0 2 2 2 2 8
CATERPILLAR INC. 0 6 1 0 0 7
CHRYSLER MOTORS CORPORATION 0 3 4 0 0 7
HORTON, INC. 2 4 1 0 0 7
MERITOR HEAVY VEHICLE SYSTEMS, LLC 2 3 1 0 1 7
MIDWEST BRAKE BOND CO. 1 2 1 0 3 7
VOLKSWAGEN AKTIENGESELLSCHAFT 0 4 3 0 0 7
ZF MERITOR, L.L.C. 0 0 0 4 3 7
AICHI KIKAI KOGYO KABUSHIKI KAISHA 0 1 3 0 2 6
BANDO CHEMICAL INDUSTRIES, LTD. 0 1 2 1 2 6
BEHR AMERICA, INC. 0 3 2 1 0 6
BEHR GMBH & CO. 1 2 2 0 1 6
ISUZU MOTORS LIMITED 0 3 0 2 1 6
NISSAN MOTOR COMPANY, LIMITED 0 1 1 0 4 6
ROHS-VOIGT PATENTVERWERTUNGSGESELLSCHAFT MBH 0 0 2 2 2 6
UNISIA JECS CORPORATION 2 0 0 2 2 6
DEERE + COMPANY 1 3 1 0 0 5
KUN TENG INDUSTRY CO., LTD. 1 0 1 2 1 5
USUI KOKUSAI SANGYO KABUSHIKI KAISHA 3 0 1 1 0 5
YUTAKA GIKEN CO., LTD. 0 0 0 1 4 5


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Office of Electronic Information Products - PTMD
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