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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 273, Amusement Devices: Games

( 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 252 223 195 210 223 1103
WILLIAMS ELECTRONICS GAMES, INC. 4 7 12 1 0 24
PRIME TABLE GAMES LLC 0 0 1 6 8 15
KONAMI CO., LTD. 4 2 3 2 2 13
MIKOHN GAMING CORPORATION 0 0 3 5 4 12
SHUFFLE MASTER, INC. 3 0 3 2 4 12
PROGRESSIVE GAMES, INC. 2 1 3 1 2 9
RLT ACQUISITION, INC. 4 2 1 0 2 9
ARUZE CORPORATION 0 0 2 4 2 8
DIGIDEAL CORPORATION 0 1 1 2 3 7
SEGA ENTERPRISES, LTD. 3 3 0 0 0 6
CASWELL INTERNATIONAL CORPORATION 1 2 1 1 0 5
KABUSHIKI KAISHA ACE DENKEN 2 2 1 0 0 5
MATTEL INC. 0 2 0 1 2 5
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 2 1 0 1 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

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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