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

Patenting In Technology Classes,
Breakout By Organization

Count of 2007 - 2011 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 055, Gas Separation

( 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 2007 2008 2009 2010 2011 Total
~INDIVIDUALLY OWNED PATENT 18 25 27 23 28 121
SAMSUNG KWANG-JU ELECTRONICS CO., LTD. 10 17 26 29 5 87
DONALDSON COMPANY, INC. 13 16 12 11 33 85
MANN & HUMMEL GMBH 5 4 9 11 19 48
LG ELECTRONICS INC. 3 5 12 11 10 41
IBIDEN CO., LTD. 2 11 6 11 8 38
NGK INSULATORS LTD. 6 10 11 1 3 31
CUMMINS FILTRATION IP, INC. 2 0 5 11 11 29
CORNING INCORPORATED 5 1 6 8 3 23
3M INNOVATIVE PROPERTIES COMPANY 4 5 1 4 3 17
HONEYWELL INTERNATIONAL INC. 1 5 2 5 3 16
DYSON TECHNOLOGY LIMITED 3 1 3 3 4 14
G.B.D. CORP. 0 2 1 5 5 13
GENERAL ELECTRIC COMPANY 0 2 2 2 7 13
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN 2 1 3 2 4 12
BALDWIN FILTERS, INC. 1 1 1 4 4 11
CATERPILLAR INC. 3 2 2 2 2 11
AAF - MCQUAY INC. 1 1 2 1 5 10
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 3 4 0 3 10
PARKER HANNIFIN (UK) LTD. 0 5 1 2 2 10
GEO2 TECHNOLOGIES, INC. 0 0 2 0 7 9
GM GLOBAL TECHNOLOGY OPERATIONS, INC. 0 0 1 2 6 9
SAMSUNG ELECTRONICS CO., LTD. 2 3 1 1 2 9
CAMFIL FARR INC. 2 0 1 1 4 8
BISSELL HOMECARE, INC. 1 0 1 3 2 7
CARL FREUDENBERG KG 1 1 4 0 1 7
EMITEC GESELLSCHAFT FUR EMISSIONSTECHNOLOGIE MBH 2 0 2 1 2 7
FLEETGUARD, INC. 3 2 2 0 0 7
ORECK HOLDINGS LLC 1 0 1 5 0 7
ALFA LAVAL CORPORATE AB 0 1 1 3 1 6
BLACK & DECKER INC. 0 2 3 1 0 6
ELECTROLUX HOME CARE PRODUCTS, INC. 0 1 2 1 2 6
EURO-PRO OPERATING, LLC 0 4 1 1 0 6
SAN FORD MACHINERY CO., LTD. 3 0 0 1 2 6
SANYO ELECTRIC CO., LTD. 1 1 2 2 0 6
SHELL OIL COMPANY 1 2 1 1 1 6
VAX LIMITED 0 0 5 1 0 6
ALSTOM TECHNOLOGY LTD 1 0 0 0 4 5
ANDREAS STIHL AG & CO. 3 0 0 2 0 5
BHA GROUP HOLDINGS, INC. 1 0 0 0 4 5
CAMFIL AB 0 0 0 1 4 5
FORD GLOBAL TECHNOLOGIES, L.L.C. 0 0 1 1 3 5
MAHLE INTERNATIONAL GMBH 0 0 0 4 1 5
THE HOOVER COMPANY 4 1 0 0 0 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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