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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 136, Batteries: Thermoelectric and Photoelectric

( 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
CANON KABUSHIKI KAISHA 29 32 13 20 16 110
~Individually Owned Patent 22 14 18 10 14 78
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 6 4 9 11 7 37
KANEKA CORPORATION 0 10 9 3 1 23
SANYO ELECTRIC CO., LTD. 4 2 7 5 1 19
JX CRYSTALS, INC. 3 6 4 1 0 14
BOEING COMPANY 2 3 1 3 3 12
INTERNATIONAL BUSINESS MACHINES CORPORATION 1 3 4 1 0 9
CITIZEN WATCH CO., LTD. 0 3 3 2 0 8
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 2 2 2 2 0 8
MITSUBISHI DENKI KABUSHIKI KAISHA 2 0 2 2 2 8
POWERLIGHT CORPORATION 0 1 2 3 2 8
CALIFORNIA INSTITUTE OF TECHNOLOGY 1 1 2 1 2 7
FUJI PHOTO FILM CO., LTD 1 1 3 1 1 7
HUGHES ELECTRONICS CORP. 3 1 3 0 0 7
MARLOW INDUSTRIES, INC. 0 3 3 1 0 7
TECSTAR POWER SYSTEMS, INC. 2 3 2 0 0 7
AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY 0 2 3 0 1 6
AISIN SEIKI KABUSHIKI KAISHA 1 1 1 0 3 6
FUJI XEROX CO., LTD. 2 3 1 0 0 6
KYOCERA CORPORATION 0 0 1 5 0 6
MASSACHUSETTS INSTITUTE OF TECHNOLOGY 1 0 1 2 2 6
MIDWEST RESEARCH INSTITUTE 1 5 0 0 0 6
NEOKISMET, L.L.C. 1 3 0 1 1 6
TDK CORPORATION 0 1 3 2 0 6
TRW INC. 1 1 4 0 0 6
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 4 1 0 0 1 6
ASTROPOWER, INC. 1 2 2 0 0 5
HI-Z TECHNOLOGY, INC. 2 2 0 1 0 5
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 3 1 1 0 0 5
NIPPON SHEET GLASS CO., LTD. 0 0 3 1 1 5
NORTH CAROLINA STATE UNIVERSITY 0 0 2 3 0 5
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. 3 1 0 1 0 5
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 1 2 1 1 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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