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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2004 - 2008 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 431, Combustion

( 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 2004 2005 2006 2007 2008 Total
~INDIVIDUALLY OWNED PATENT 52 46 31 23 14 166
EXXONMOBIL CHEMICAL PATENTS INC. 0 12 2 0 1 15
ALSTOM TECHNOLOGY LTD 4 3 1 4 2 14
BIC CORPORATION 3 4 3 1 0 11
JOHN ZINK COMPANY 5 2 2 2 0 11
J. EBERSPACHER GMBH & CO. KG 3 4 1 1 1 10
S. C. JOHNSON + SON, INC. 2 0 0 3 5 10
AIR PRODUCTS AND CHEMICALS, INC. 2 2 1 1 2 8
HONEYWELL INTERNATIONAL INC. 2 2 0 2 2 8
EMERSON ELECTRIC CO. 1 2 4 0 0 7
NORITZ CORPORATION 2 3 1 1 0 7
PRAXAIR TECHNOLOGY, INC. 5 2 0 0 0 7
EBARA CORPORATION 3 2 1 0 0 6
GENERAL MOTORS CORPORATION 4 2 0 0 0 6
GAS TECHNOLOGY INSTITUTE 2 2 1 0 0 5
NORTH AMERICAN MANUFACTURING COMPANY 2 1 0 1 1 5
SWEDISH MATCH LIGHTERS B.V. 4 1 0 0 0 5


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/


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