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


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

Patenting In Technology Classes,
Breakout By Organization

Count of 2010 - 2014 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 2010 2011 2012 2013 2014 Total
~INDIVIDUALLY OWNED PATENT 15 7 13 13 14 62
EMERSON CLIMATE TECHNOLOGIES, INC. 7 20 3 10 9 49
DAIKIN INDUSTRIES LIMITED 8 3 8 16 9 44
LG ELECTRONICS INC. 10 6 6 9 10 41
MITSUBISHI HEAVY INDUSTRIES, LTD. 3 5 8 3 4 23
HITACHI, LTD 5 5 5 2 1 18
SANYO ELECTRIC CO., LTD. 2 1 4 4 4 15
HAMILTON SUNDSTRAND CORPORATION 0 2 6 2 4 14
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) 0 1 4 5 4 14
PANASONIC CORPORATION 1 2 8 1 2 14
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. 2 2 3 0 4 11
MITSUBISHI DENKI KABUSHIKI KAISHA 4 1 1 2 3 11
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 1 0 3 4 3 11
DANFOSS COMMERCIAL COMPRESSORS 3 2 1 2 2 10
DENSO CORPORATION 1 3 1 4 1 10
EDWARDS LIMITED 1 1 1 3 4 10
MAGNA POWERTRAIN, INC. 3 5 1 1 0 10
BITZER KUEHLMASCHINENBAU GMBH 0 4 1 1 3 9
EATON CORPORATION 2 2 2 1 2 9
GM GLOBAL TECHNOLOGY OPERATIONS LLC 1 4 0 1 3 9
ROBERT BOSCH GMBH 2 1 1 4 1 9
ANEST IWATA CORPORATION 2 3 0 2 1 8
BITZER SCROLL INC. 0 2 6 0 0 8
CARRIER CORPORATION 2 4 1 0 0 7
HITACHI APPLIANCES, INC. 1 0 2 0 4 7
SANDEN CORPORATION 3 2 1 1 0 7
FUJITSU GENERAL LIMITED 3 1 1 0 1 6
HITACHI AUTOMOTIVE SYSTEMS, LTD. 0 0 0 4 2 6
SAMSUNG ELECTRONICS CO., LTD. 4 1 0 1 0 6
SCROLL TECHNOLOGIES, INC. 3 2 1 0 0 6
TECUMSEH PRODUCTS COMPANY 0 3 3 0 0 6
ADVICS CO., LTD. 0 1 1 1 2 5
AISIN SEIKI KABUSHIKI KAISHA 1 1 1 2 0 5
GENERAL ELECTRIC COMPANY 1 0 2 2 0 5
HYUNDAI MOTOR COMPANY 0 1 1 2 1 5
SCHLUMBERGER TECHNOLOGY CORPORATION 0 1 3 0 1 5
SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBH & CO.KG 1 0 1 0 3 5
TAIHO KOGYO CO., LTD. 0 1 1 3 0 5
TEXAS A AND M UNIVERSITY 2 0 0 0 3 5
TOSHIBA CARRIER CORPORATION 1 0 2 1 1 5
WHITE DRIVE PRODUCTS, INC. 1 0 2 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/reports.htm
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


Top

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