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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 2000 - 2004 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 2000 2001 2002 2003 2004 Total
MANNESMANN SACHS AG 38 16 26 42 14 136
~Individually Owned Patent 18 18 14 11 10 71
VALEO S.A. 17 23 12 4 8 64
EXEDY CORPORATION 30 13 5 8 7 63
EATON CORPORATION 13 7 13 15 6 54
NSK-WARNER K. K. 15 6 10 9 13 53
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 6 2 19 10 7 44
BORGWARNER INC. 6 10 5 9 12 42
LUK GETRIEBE-SYSTEME GMBH 11 12 8 1 2 34
LUK LAMELLEN UND KUPPLUNGSBAU GMBH 10 17 7 0 0 34
NTN CORPORATION 5 4 5 7 12 33
ZF SACHS AG 0 0 0 0 31 31
GENERAL MOTORS CORPORATION 3 7 3 5 10 28
LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG 0 0 2 16 8 26
NEW VENTURE GEAR, INC. 5 1 4 5 9 24
ZAHNRADFABRIK FRIEDRICHSHAFEN AG 2 5 5 4 4 20
GKN VISCODRIVE GMBH 5 4 4 3 0 16
KOYO SEIKO COMPANY, LTD. 3 3 4 1 5 16
DANA CORPORATION 5 5 3 0 1 14
DENSO CORPORATION 3 4 1 3 2 13
INA WALZLAGER SCHAEFFLER OHG 3 3 1 5 0 12
YUTAKA GIKEN CO., LTD. 0 1 4 3 4 12
HYUNDAI MOTOR CO., LTD. 1 2 5 2 1 11
NSK LIMITED 0 4 4 2 1 11
MEANS INDUSTRIES 4 2 2 2 0 10
TOYOTA JIDOSHA K.K. 2 1 2 5 0 10
ZF MERITOR, L.L.C. 0 4 3 2 1 10
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 3 3 0 1 2 9
FORD GLOBAL TECHNOLOGIES, INC. 3 2 3 1 0 9
AISIN SEIKI KABUSHIKI KAISHA 2 2 0 2 2 8
FUJIUNIVANCE CO. 0 3 5 0 0 8
SACHS RACE ENGINEERING GMBH 5 3 0 0 0 8
SKF FRANCE 2 2 2 1 1 8
WARN INDUSTRIES, INC. 2 2 3 1 0 8
ASMO CO., LTD. 0 0 4 2 1 7
NISSAN MOTOR COMPANY, LIMITED 1 0 4 0 2 7
TOYODA KOKI KABUSHIKI KAISHA 1 1 0 3 2 7
VISTEON GLOBAL TECHNOLOGIES, INC. 0 2 1 2 2 7
BANDO CHEMICAL INDUSTRIES, LTD. 2 1 2 1 0 6
BROSE FAHRZEUGTEILE GMBH & CO. KOMMANDITGESELLSCHAFT 1 1 0 3 1 6
DEERE + COMPANY 1 0 0 2 3 6
GKN AUTOMOTIVE INC. 0 1 0 5 0 6
ISUZU MOTORS LIMITED 0 2 1 2 1 6
J. M. VOITH TURBO GMBH & CO. KG 1 1 1 1 2 6
JATCO TRANSTECHNOLOGY LTD. 0 0 3 3 0 6
KER-TRAIN HOLDINGS LTD. 1 0 3 0 2 6
KOMATSU LTD. 1 1 2 0 2 6
ROHS-VOIGT PATENTVERWERTUNGSGESELLSCHAFT MBH 2 2 2 0 0 6
SHIMANO INC. 1 2 2 1 0 6
TESMA INTERNATIONAL INC. 0 1 1 1 3 6
TOCHIGI-FUJI SANGYO KABUSHIKI KAISHA 0 0 1 0 5 6
AICHI KIKAI KOGYO KABUSHIKI KAISHA 3 0 2 0 0 5
CATERPILLAR INC. 1 0 0 3 1 5
GKN WALTERSCHEID GMBH 0 0 0 2 3 5
INA-SCHAEFFLER KG 0 0 0 1 4 5
KANZAKI KOKYOKOKI MFG. CO., LTD. 1 1 1 1 1 5
KUBOTA CORPORATION 1 2 0 1 1 5
MIDWEST BRAKE BOND CO. 1 0 3 1 0 5
STEYR-DAIMLER-PUCH FAHRZEUGTECHNIK AG & CO.K.G. 0 3 1 0 1 5
THE MINSTER MACHINE COMPANY 1 1 0 3 0 5
TORQUE-TRACTION TECHNOLOGIES, INC. 0 0 0 2 3 5
UNISIA JECS CORPORATION 0 2 2 0 1 5
USUI KOKUSAI SANGYO KABUSHIKI KAISHA 1 1 0 2 1 5
VOLKSWAGEN AKTIENGESELLSCHAFT 3 0 0 1 1 5


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