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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 473, Games Using Tangible Projectile

( 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
~Individually Owned Patent 468 382 324 316 307 1797
BRIDGESTONE SPORTS CO., LTD. 48 24 22 33 37 164
CALLAWAY GOLF COMPANY 8 5 8 17 60 98
SPALDING SPORTS WORLDWIDE, INC. 0 4 21 36 35 96
SUMITOMO RUBBER INDUSTRIES, LTD. 28 11 11 20 22 92
ACUSHNET COMPANY 11 11 9 18 22 71
LISCO, INC. 20 8 1 0 0 29
TAYLOR MADE GOLF COMPANY, INC. 9 4 8 4 3 28
WILSON SPORTING GOODS CO. 2 4 5 3 8 22
YOKOHAMA RUBBER CO., LTD. 3 5 5 5 2 20
KABUSHIKI KAISHA ENDO SEISAKUSHO 2 5 5 5 2 19
LIFETIME PRODUCTS, INC. 3 2 6 1 6 18
HUFFY CORPORATION 4 7 2 3 0 16
DAIWA SEIKO INC 2 3 4 3 2 14
BRUNSWICK BOWLING AND BILLIARDS CORPORATION 5 4 2 0 2 13
HILLERICH & BRADSBY CO., INC. 4 5 2 2 0 13
JAMES D. EASTON, INC. 2 3 2 2 3 12
KARSTEN MANUFACTURING CORP. 3 2 0 2 4 11
PRINCE SPORTS GROUP, INC. 6 3 2 0 0 11
HARRISON SPORTS, INC. 3 4 2 0 1 10
COBRA GOLF, INC. II 1 2 3 2 0 8
CARBITE, INC. 1 0 1 3 2 7
MIZUNO CORPORATION 0 0 0 0 7 7
ODDZON PRODUCTS, INC 1 1 2 2 0 6
TRUE TEMPER SPORTS, INC. 0 5 0 1 0 6
WORTH, INC. 0 0 1 2 3 6
ZEVO GOLF CO., INC. 1 3 1 1 0 6
AMF BOWLING, INC. 2 3 0 0 0 5
CHIEN TING PRECISION CASTING CO., LTD. 2 2 0 0 1 5
DEMARINI SPORTS, INC. 1 3 1 0 0 5
NEW ARCHERY PRODUCTS CORPORATION 0 2 1 1 1 5
PATENT CATEGORY CORP. 1 1 1 1 1 5
YAMAHA CORPORATION 1 2 1 0 1 5


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

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