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

Patenting In Technology Classes,
Breakout By Organization

Count of 2009 - 2013 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 418, Rotary Expansible Chamber Devices

( 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 2009 2010 2011 2012 2013 Total
~INDIVIDUALLY OWNED PATENT 12 15 7 13 13 60
DAIKIN INDUSTRIES LIMITED 12 8 3 8 16 47
EMERSON CLIMATE TECHNOLOGIES, INC. 4 7 20 3 10 44
LG ELECTRONICS INC. 12 10 6 6 9 43
SANYO ELECTRIC CO., LTD. 15 2 1 4 4 26
MITSUBISHI HEAVY INDUSTRIES, LTD. 2 3 5 8 3 21
HITACHI, LTD 0 5 5 5 2 17
PANASONIC CORPORATION 2 1 2 8 1 14
HAMILTON SUNDSTRAND CORPORATION 1 0 2 6 2 11
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) 1 0 1 4 5 11
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI 3 1 0 3 4 11
MAGNA POWERTRAIN, INC. 1 3 5 1 1 11
ANEST IWATA CORPORATION 3 2 3 0 2 10
DENSO CORPORATION 1 1 3 1 4 10
CARRIER CORPORATION 2 2 4 1 0 9
EATON CORPORATION 2 2 2 2 1 9
MITSUBISHI DENKI KABUSHIKI KAISHA 1 4 1 1 2 9
BITZER SCROLL INC. 0 0 2 6 0 8
DANFOSS COMMERCIAL COMPRESSORS 0 3 2 1 2 8
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. 1 2 2 3 0 8
ROBERT BOSCH GMBH 0 2 1 1 4 8
SCROLL TECHNOLOGIES, INC. 2 3 2 1 0 8
BITZER KUEHLMASCHINENBAU GMBH 1 0 4 1 1 7
EDWARDS LIMITED 1 1 1 1 3 7
GM GLOBAL TECHNOLOGY OPERATIONS LLC 1 1 4 0 1 7
SAMSUNG ELECTRONICS CO., LTD. 1 4 1 0 1 7
SANDEN CORPORATION 0 3 2 1 1 7
TECUMSEH PRODUCTS COMPANY 1 0 3 3 0 7
AISIN SEIKI KABUSHIKI KAISHA 1 1 1 1 2 6
TAIHO KOGYO CO., LTD. 1 0 1 1 3 6
FUJITSU GENERAL LIMITED 0 3 1 1 0 5
GENERAL ELECTRIC COMPANY 0 1 0 2 2 5
TOSHIBA CARRIER CORPORATION 1 1 0 2 1 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
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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