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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 122, Liquid Heaters and Vaporizers

( 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 16 15 14 11 10 66
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 4 14 5 1 0 24
BABCOCK & WILCOX COMPANY 6 5 4 3 3 21
SRP 687 PTY LTD 1 2 8 6 4 21
SIEMENS AKTIENGESELLSCHAFT 4 3 2 4 6 19
COMBUSTION ENGINEERING INC. 7 3 4 0 0 14
AOS HOLDING COMPANY 2 0 2 6 1 11
ASEA BROWN BOVERI AKTIENGESELLSCHAFT 4 3 1 0 0 8
MIURA CO., LTD. 0 0 3 3 1 7
THE WATER HEATER INDUSTRY JOINT RESEARCH AND DEVELOPMENT CONSORTIUM 0 1 1 0 5 7
TOSHIBA CORPORATION 0 0 2 2 2 6
ALSTOM (SWITZERLAND) LTD 0 0 0 2 3 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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