Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports
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 )
First-Named Assignee | 2011 | 2012 | 2013 | 2014 | 2015 | Total |
---|---|---|---|---|---|---|
DONALDSON COMPANY, INC. | 33 | 27 | 37 | 32 | 20 | 149 |
~INDIVIDUALLY OWNED PATENT | 28 | 20 | 33 | 16 | 22 | 119 |
MANN & HUMMEL GMBH | 19 | 30 | 18 | 20 | 21 | 108 |
CUMMINS FILTRATION IP, INC. | 11 | 10 | 8 | 6 | 5 | 40 |
GENERAL ELECTRIC COMPANY | 7 | 6 | 12 | 1 | 2 | 28 |
NGK INSULATORS LTD. | 3 | 1 | 6 | 7 | 11 | 28 |
IBIDEN CO., LTD. | 8 | 6 | 5 | 3 | 5 | 27 |
HOLLINGSWORTH + VOSE COMPANY | 3 | 4 | 4 | 7 | 3 | 21 |
3M INNOVATIVE PROPERTIES COMPANY | 3 | 2 | 10 | 3 | 2 | 20 |
CORNING INCORPORATED | 3 | 5 | 6 | 3 | 3 | 20 |
SAMSUNG ELECTRONICS CO., LTD. | 2 | 4 | 3 | 5 | 2 | 16 |
BHA ALTAIR, LLC | 0 | 0 | 0 | 11 | 4 | 15 |
MAHLE INTERNATIONAL GMBH | 1 | 1 | 2 | 4 | 7 | 15 |
BALDWIN FILTERS, INC. | 4 | 3 | 4 | 1 | 2 | 14 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) | 3 | 6 | 3 | 1 | 1 | 14 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC | 6 | 3 | 3 | 1 | 0 | 13 |
LG ELECTRONICS INC. | 10 | 2 | 0 | 0 | 1 | 13 |
ALFA LAVAL CORPORATE AB | 1 | 0 | 0 | 8 | 3 | 12 |
DAIKIN INDUSTRIES LIMITED | 3 | 1 | 5 | 2 | 1 | 12 |
DYSON TECHNOLOGY LIMITED | 4 | 5 | 3 | 0 | 0 | 12 |
EUROFILTERS HOLDING N.V. | 0 | 2 | 3 | 5 | 2 | 12 |
FORD GLOBAL TECHNOLOGIES, L.L.C. | 3 | 2 | 5 | 1 | 1 | 12 |
CAMFIL FARR INC. | 4 | 3 | 1 | 2 | 0 | 10 |
AAF - MCQUAY INC. | 5 | 3 | 0 | 1 | 0 | 9 |
ALSTOM TECHNOLOGY LTD | 4 | 2 | 0 | 2 | 1 | 9 |
CARL FREUDENBERG KG | 1 | 2 | 2 | 3 | 1 | 9 |
CLARCOR AIR FILTRATION PRODUCTS, INC. | 0 | 0 | 3 | 2 | 4 | 9 |
EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH | 2 | 0 | 5 | 1 | 1 | 9 |
BLACK & DECKER INC. | 0 | 1 | 0 | 2 | 5 | 8 |
E. I. DU PONT DE NEMOURS AND COMPANY | 0 | 3 | 2 | 3 | 0 | 8 |
G.B.D. CORP. | 5 | 2 | 1 | 0 | 0 | 8 |
HITACHI METALS LTD. | 1 | 1 | 4 | 2 | 0 | 8 |
SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN | 4 | 0 | 4 | 0 | 0 | 8 |
CAMFIL AB | 4 | 0 | 0 | 1 | 2 | 7 |
CATERPILLAR INC. | 2 | 2 | 2 | 1 | 0 | 7 |
GEO2 TECHNOLOGIES, INC. | 7 | 0 | 0 | 0 | 0 | 7 |
HAMILTON SUNDSTRAND CORPORATION | 0 | 2 | 1 | 2 | 2 | 7 |
MITSUBISHI HEAVY INDUSTRIES, LTD. | 4 | 0 | 1 | 2 | 0 | 7 |
ROBERT BOSCH GMBH | 2 | 2 | 1 | 2 | 0 | 7 |
BHA GROUP HOLDINGS, INC. | 4 | 2 | 0 | 0 | 0 | 6 |
DOW GLOBAL TECHNOLOGIES LLC | 3 | 2 | 1 | 0 | 0 | 6 |
NITTO DENKO CORPORATION | 0 | 1 | 3 | 1 | 1 | 6 |
TOYOTA BOSHOKU KABUSHIKI KAISHA | 1 | 1 | 1 | 0 | 3 | 6 |
TOYOTA JIDOSHA K.K. | 1 | 2 | 0 | 2 | 1 | 6 |
CAMFIL USA, INC. | 0 | 0 | 0 | 1 | 4 | 5 |
EUROFILTERS N.V. | 3 | 2 | 0 | 0 | 0 | 5 |
HONEYWELL INTERNATIONAL INC. | 3 | 0 | 1 | 1 | 0 | 5 |
JOHNS MANVILLE | 1 | 2 | 1 | 0 | 1 | 5 |
SAMSUNG KWANG-JU ELECTRONICS CO., LTD. | 5 | 0 | 0 | 0 | 0 | 5 |
YANMAR CO., LTD. | 0 | 0 | 1 | 3 | 1 | 5 |
ZIPWALL, LLC | 1 | 1 | 2 | 1 | 0 | 5 |
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 22313-1450tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.govaddress 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/
Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports