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Rank Ordered Listing of Organizations Receiving
5
or More Utility Patents During the Period
Having Primary Classification In
Class 507, Earth Boring, Well Treating, and Oil Field Chemistry
( 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 |
---|---|---|---|---|---|---|
HALLIBURTON ENERGY SERVICES, INC. | 46 | 29 | 52 | 39 | 30 | 196 |
BAKER HUGHES INCORPORATED | 26 | 14 | 13 | 16 | 15 | 84 |
SCHLUMBERGER TECHNOLOGY CORPORATION | 24 | 12 | 10 | 17 | 14 | 77 |
M-I L.L.C | 9 | 10 | 7 | 3 | 4 | 33 |
CLEARWATER INTERNATIONAL LLC. | 7 | 3 | 6 | 5 | 2 | 23 |
NALCO COMPANY | 9 | 5 | 4 | 2 | 3 | 23 |
~INDIVIDUALLY OWNED PATENT | 4 | 3 | 2 | 4 | 4 | 17 |
BASF SE | 3 | 3 | 1 | 1 | 3 | 11 |
SUN DRILLING PRODUCTS CORP. | 1 | 2 | 5 | 0 | 3 | 11 |
INTEVEP, S.A. | 4 | 3 | 0 | 0 | 2 | 9 |
SAUDI ARABIAN OIL COMPANY | 1 | 0 | 2 | 1 | 5 | 9 |
DORF KETAL SPECIALITY CATALYSTS, LLC | 2 | 5 | 1 | 0 | 0 | 8 |
E. I. DU PONT DE NEMOURS AND COMPANY | 0 | 2 | 1 | 3 | 2 | 8 |
UNIVERSITY OF TEXAS | 1 | 3 | 1 | 2 | 1 | 8 |
ELEMENTIS SPECIALTIES, INC. | 3 | 1 | 1 | 2 | 0 | 7 |
EXXONMOBIL UPSTREAM RESEARCH COMPANY | 1 | 3 | 2 | 1 | 0 | 7 |
RHODIA OPERATIONS | 2 | 0 | 1 | 2 | 2 | 7 |
LAMBERTI S.P.A. | 2 | 0 | 1 | 0 | 3 | 6 |
SHELL OIL COMPANY | 0 | 0 | 1 | 3 | 2 | 6 |
3M INNOVATIVE PROPERTIES COMPANY | 0 | 2 | 1 | 1 | 1 | 5 |
AKZO NOBEL NV | 0 | 3 | 0 | 2 | 0 | 5 |
CONOCOPHILLIPS COMPANY | 0 | 0 | 1 | 3 | 1 | 5 |
OXANE MATERIALS, INC. | 0 | 3 | 0 | 2 | 0 | 5 |
STEPAN COMPANY | 4 | 0 | 0 | 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