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

Patenting In Technology Classes,
Breakout By Organization

Count of 2008 - 2012 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 2008 2009 2010 2011 2012 Total
~INDIVIDUALLY OWNED PATENT 9 12 15 7 13 56
LG ELECTRONICS INC. 21 12 10 6 6 55
EMERSON CLIMATE TECHNOLOGIES, INC. 7 4 7 20 3 41
DAIKIN INDUSTRIES LIMITED 5 12 8 3 8 36
SANYO ELECTRIC CO., LTD. 8 15 2 1 4 30
HITACHI, LTD 6 0 5 5 5 21
MITSUBISHI HEAVY INDUSTRIES, LTD. 2 2 3 5 8 20
ANEST IWATA CORPORATION 8 3 2 3 0 16
PANASONIC CORPORATION 0 2 1 2 8 13
SCROLL TECHNOLOGIES, INC. 4 2 3 2 1 12
MAGNA POWERTRAIN, INC. 0 1 3 5 1 10
CARRIER CORPORATION 0 2 2 4 1 9
HAMILTON SUNDSTRAND CORPORATION 0 1 0 2 6 9
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI 2 3 1 0 3 9
SANDEN CORPORATION 3 0 3 2 1 9
TECUMSEH PRODUCTS COMPANY 2 1 0 3 3 9
BITZER SCROLL INC. 0 0 0 2 6 8
EATON CORPORATION 0 2 2 2 2 8
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. 0 1 2 2 3 8
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 5 2 1 0 0 8
DENSO CORPORATION 1 1 1 3 1 7
FUJITSU GENERAL LIMITED 2 0 3 1 1 7
MITSUBISHI DENKI KABUSHIKI KAISHA 0 1 4 1 1 7
SAMSUNG ELECTRONICS CO., LTD. 1 1 4 1 0 7
BITZER KUEHLMASCHINENBAU GMBH 0 1 0 4 1 6
DANFOSS COMMERCIAL COMPRESSORS 0 0 3 2 1 6
GM GLOBAL TECHNOLOGY OPERATIONS, INC. 0 1 1 4 0 6
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) 0 1 0 1 4 6
YAMADA MANUFACTURING CO., LTD. 2 2 0 2 0 6
EDWARDS LIMITED 1 1 1 1 1 5
HITACHI APPLIANCES, INC. 1 1 1 0 2 5
NETZSCH-MOHNOPUMPEN-GMBH 1 1 0 3 0 5
WHITE DRIVE PRODUCTS, INC. 1 1 1 0 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/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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