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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 092, Expansible Chamber Devices

( 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
~Individually Owned Patent 10 13 15 17 9 64
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 5 14 12 8 0 39
SANDEN CORPORATION 3 6 5 3 4 21
SMC KABUSHIKI KAISHA 3 2 5 7 2 19
SAUER-DANFOSS INC. 0 5 3 5 3 16
CATERPILLAR INC. 4 5 2 4 0 15
FESTO AG & CO. 2 3 5 1 3 14
SMC CORPORATION 1 2 5 4 2 14
MAHLE GMBH 1 1 3 2 4 11
DELPHI TECHNOLOGIES, INC. 0 2 1 4 3 10
ROBERT BOSCH GMBH 1 4 2 1 2 10
VISTEON GLOBAL TECHNOLOGIES, INC. 0 1 2 7 0 10
FEDERAL-MOGUL WORLD WIDE, INC. 0 1 2 6 0 9
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 1 3 2 3 0 9
MANNESMANN SACHS AG 2 3 2 1 1 9
HALDEX BRAKE CORPORATION 1 0 1 5 1 8
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI 0 0 0 2 6 8
INDIAN HEAD INDUSTRIES, INC. 0 4 3 0 0 7
VALEO S.A. 0 1 4 0 2 7
BRUENINGHAUS HYDROMATIK GMBH 0 3 0 2 1 6
CONTINENTAL TEVES AG & CO., OHG 1 2 0 2 1 6
TSE BRAKES, INC. 2 1 3 0 0 6
HALLA CLIMATE CONTROL CORPORATION 0 0 1 3 1 5
HOWA MACHINERY, LTD. 1 4 0 0 0 5


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
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
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


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