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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 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 2010 2011 2012 2013 2014 Total
DONALDSON COMPANY, INC. 11 33 27 37 32 140
~INDIVIDUALLY OWNED PATENT 23 28 20 33 16 120
MANN & HUMMEL GMBH 11 19 30 18 20 98
CUMMINS FILTRATION IP, INC. 11 11 10 8 6 46
SAMSUNG KWANG-JU ELECTRONICS CO., LTD. 29 5 0 0 0 34
IBIDEN CO., LTD. 11 8 6 5 3 33
GENERAL ELECTRIC COMPANY 2 7 6 12 1 28
CORNING INCORPORATED 8 3 5 6 3 25
LG ELECTRONICS INC. 11 10 2 0 0 23
3M INNOVATIVE PROPERTIES COMPANY 4 3 2 10 3 22
HOLLINGSWORTH + VOSE COMPANY 0 3 4 4 7 18
NGK INSULATORS LTD. 1 3 1 6 7 18
BALDWIN FILTERS, INC. 4 4 3 4 1 16
DYSON TECHNOLOGY LIMITED 3 4 5 3 0 15
GM GLOBAL TECHNOLOGY OPERATIONS LLC 2 6 3 3 1 15
SAMSUNG ELECTRONICS CO., LTD. 1 2 4 3 5 15
G.B.D. CORP. 5 5 2 1 0 13
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 3 6 3 1 13
ALFA LAVAL CORPORATE AB 3 1 0 0 8 12
FORD GLOBAL TECHNOLOGIES, L.L.C. 1 3 2 5 1 12
MAHLE INTERNATIONAL GMBH 4 1 1 2 4 12
BHA ALTAIR, LLC 0 0 0 0 11 11
CAMFIL FARR INC. 1 4 3 1 2 11
DAIKIN INDUSTRIES LIMITED 0 3 1 5 2 11
AAF - MCQUAY INC. 1 5 3 0 1 10
EUROFILTERS HOLDING N.V. 0 0 2 3 5 10
HITACHI METALS LTD. 2 1 1 4 2 10
HONEYWELL INTERNATIONAL INC. 5 3 0 1 1 10
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN 2 4 0 4 0 10
CATERPILLAR INC. 2 2 2 2 1 9
E. I. DU PONT DE NEMOURS AND COMPANY 1 0 3 2 3 9
EMITEC GESELLSCHAFT FUR EMISSIONSTECHNOLOGIE MBH 1 2 0 5 1 9
ALSTOM TECHNOLOGY LTD 0 4 2 0 2 8
CARL FREUDENBERG KG 0 1 2 2 3 8
GEO2 TECHNOLOGIES, INC. 0 7 0 0 0 7
MITSUBISHI HEAVY INDUSTRIES, LTD. 0 4 0 1 2 7
ROBERT BOSCH GMBH 0 2 2 1 2 7
BHA GROUP HOLDINGS, INC. 0 4 2 0 0 6
CAMFIL AB 1 4 0 0 1 6
DOW GLOBAL TECHNOLOGIES LLC 0 3 2 1 0 6
ILLINOIS TOOL WORKS INC. 2 0 4 0 0 6
NITTO DENKO CORPORATION 1 0 1 3 1 6
ZIPWALL, LLC 1 1 1 2 1 6
BISSELL HOMECARE, INC. 3 2 0 0 0 5
CLARCOR AIR FILTRATION PRODUCTS, INC. 0 0 0 3 2 5
DEERE + COMPANY 2 1 1 0 1 5
EUROFILTERS N.V. 0 3 2 0 0 5
HAMILTON SUNDSTRAND CORPORATION 0 0 2 1 2 5
ORECK HOLDINGS LLC 5 0 0 0 0 5
PARKER HANNIFIN (UK) LTD. 2 2 1 0 0 5
TOYOTA JIDOSHA K.K. 0 1 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/


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