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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 152, Resilient Tires and Wheels

( 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
GOODYEAR TIRE + RUBBER COMPANY 24 16 29 27 55 151
BRIDGESTONE CORPORATION 26 22 28 35 32 143
SUMITOMO RUBBER INDUSTRIES, LTD. 18 16 34 31 21 120
~Individually Owned Patent 16 17 22 17 13 85
COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN-MICHELIN & CIE 13 14 9 6 18 60
YOKOHAMA RUBBER CO., LTD. 9 7 9 7 9 41
MICHELIN RECHERCHE ET TECHNIQUE 5 6 3 5 16 35
PIRELLI COORDINAMENTO PNEUMATICI S.P.A. 3 7 5 6 1 22
CONTINENTAL AKTIENGESELLSCHAFT 3 1 3 2 6 15
PIRELLI PNEUMATICI S.P.A. 0 0 1 4 9 14
BRIDGESTONE/FIRESTONE NORTH AMERICAN TIRE, LLC 0 0 0 0 10 10
BRIDGESTONE/FIRESTONE, INC. 2 4 3 0 0 9
TOYO TIRE & RUBBER CO., LTD. 1 1 1 3 2 8
BRIDGESTONE/FIRESTONE RESEARCH, INC. 0 0 2 2 2 6


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
PK3- Suite 441; P.O Box 1450
Alexandria VA 22313

tel: (703) 306-2600
fax: (703) 306-2737
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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