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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)
Patenting In Technology Classes, Breakout By Organization
Count of 2005 - 2009 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.
LG ELECTRONICS INC.
4
7
12
21
12
56
~INDIVIDUALLY OWNED PATENT
10
11
6
9
12
48
SANYO ELECTRIC CO., LTD.
2
4
5
8
15
34
ANEST IWATA CORPORATION
3
9
9
8
3
32
DAIKIN INDUSTRIES LIMITED
6
2
2
5
12
27
SCROLL TECHNOLOGIES, INC.
5
1
7
4
2
19
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
3
1
4
5
2
15
EMERSON CLIMATE TECHNOLOGIES, INC.
0
0
3
7
4
14
HITACHI, LTD
1
3
3
6
0
13
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
2
3
3
2
3
13
SAMSUNG ELECTRONICS CO., LTD.
3
3
5
1
1
13
TECUMSEH PRODUCTS COMPANY
2
4
1
2
1
10
CARRIER CORPORATION
2
4
1
0
2
9
SANDEN CORPORATION
0
0
6
3
0
9
1564330 ONTARIO, INC.
1
2
1
1
1
6
DENSO CORPORATION
0
1
3
1
1
6
ANSPACH EFFORT, INC.
0
1
2
0
2
5
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.)
1
3
1
0
0
5
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN
0
0
3
1
1
5
MITSUBISHI HEAVY INDUSTRIES, LTD.
1
0
0
2
2
5
NETZSCH-MOHNOPUMPEN-GMBH
0
3
0
1
1
5
TOSHIBA CARRIER CORPORATION
1
2
1
0
1
5
YAMADA MANUFACTURING CO., LTD.
0
1
0
2
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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