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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2011 - 2015 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 2011 2012 2013 2014 2015 Total
~INDIVIDUALLY OWNED PATENT 9 14 19 12 28 82
ALSTOM TECHNOLOGY LTD 14 1 2 3 2 22
GENERAL ELECTRIC COMPANY 2 1 7 5 6 21
HONEYWELL INTERNATIONAL INC. 3 3 5 6 3 20
COPRECITEC, S.L. 2 4 3 4 1 14
L'AIR LIQUIDE, SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 0 2 2 6 4 14
SIEMENS AKTIENGESELLSCHAFT 1 5 2 2 4 14
AIR PRODUCTS AND CHEMICALS, INC. 0 1 5 4 3 13
RINNAI CORPORATION 2 1 1 2 3 9
PRAXAIR TECHNOLOGY, INC. 1 2 1 0 3 7
AGA AB 3 1 1 1 0 6
CARRIER CORPORATION 0 1 0 2 3 6
CONTINENTAL APPLIANCES INC 0 5 1 0 0 6
JOHN ZINK COMPANY 2 1 2 1 0 6
LAMPLIGHT FARMS, INC. 0 0 3 0 3 6
BECKETT GAS, INC. 1 2 0 0 2 5
FIVES NORTH AMERICAN COMBUSTION, INC. 3 1 0 0 1 5
IHI CORP. 0 0 0 4 1 5
KYUNGDONG NAVIEN CO., LTD 0 2 0 0 3 5
PRO-IRODA INDUSTRIES, INC. 1 1 0 1 2 5
PROCOM HEATING, INC. 0 0 2 1 2 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/reports.htm
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports