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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 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 2011 2012 2013 2014 2015 Total
~INDIVIDUALLY OWNED PATENT 7 13 13 14 19 66
EMERSON CLIMATE TECHNOLOGIES, INC. 20 3 10 9 9 51
LG ELECTRONICS INC. 6 6 9 10 20 51
DAIKIN INDUSTRIES LIMITED 3 8 16 9 14 50
MITSUBISHI HEAVY INDUSTRIES, LTD. 5 8 3 4 2 22
HAMILTON SUNDSTRAND CORPORATION 2 6 2 4 5 19
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. 2 3 0 4 7 16
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) 1 4 5 4 1 15
ROBERT BOSCH GMBH 1 1 4 1 8 15
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 0 3 4 3 5 15
DANFOSS COMMERCIAL COMPRESSORS 2 1 2 2 7 14
BITZER KUEHLMASCHINENBAU GMBH 4 1 1 3 4 13
EDWARDS LIMITED 1 1 3 4 4 13
HITACHI, LTD 5 5 2 1 0 13
PANASONIC CORPORATION 2 8 1 2 0 13
SANYO ELECTRIC CO., LTD. 1 4 4 4 0 13
EATON CORPORATION 2 2 1 2 4 11
HITACHI AUTOMOTIVE SYSTEMS, LTD. 0 0 4 2 5 11
MITSUBISHI DENKI KABUSHIKI KAISHA 1 1 2 3 4 11
DENSO CORPORATION 3 1 4 1 0 9
GM GLOBAL TECHNOLOGY OPERATIONS LLC 4 0 1 3 1 9
MAGNA POWERTRAIN, INC. 5 1 1 0 2 9
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. 0 0 0 0 9 9
BITZER SCROLL INC. 2 6 0 0 0 8
HITACHI APPLIANCES, INC. 0 2 0 4 2 8
ADVICS CO., LTD. 1 1 1 2 2 7
ANEST IWATA CORPORATION 3 0 2 1 1 7
WHITE DRIVE PRODUCTS, INC. 0 2 0 2 3 7
CARRIER CORPORATION 4 1 0 0 1 6
FUJITSU GENERAL LIMITED 1 1 0 1 3 6
HYUNDAI MOTOR COMPANY 1 1 2 1 1 6
SCHLUMBERGER TECHNOLOGY CORPORATION 1 3 0 1 1 6
TECUMSEH PRODUCTS COMPANY 3 3 0 0 0 6
YAMADA MANUFACTURING CO., LTD. 2 0 0 1 3 6
AISIN SEIKI KABUSHIKI KAISHA 1 1 2 0 1 5
BAKER HUGHES INCORPORATED 0 0 2 1 2 5
CALSONIC KANSEI CORPORATION 0 4 0 0 1 5
FORD GLOBAL TECHNOLOGIES, L.L.C. 1 0 0 0 4 5
PRATT & WHITNEY CANADA CORP. 0 0 1 2 2 5
SANDEN CORPORATION 2 1 1 0 1 5
TAIHO KOGYO CO., LTD. 1 1 3 0 0 5
VHIT S.P.A. 0 3 1 0 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/reports.htm
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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