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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 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 )

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
HALLIBURTON ENERGY SERVICES, INC. 51 46 29 52 39 217
SCHLUMBERGER TECHNOLOGY CORPORATION 26 24 12 10 17 89
BAKER HUGHES INCORPORATED 16 26 14 13 16 85
M-I L.L.C 10 9 10 7 3 39
CLEARWATER INTERNATIONAL LLC. 2 7 3 6 5 23
NALCO COMPANY 0 9 5 4 2 20
~INDIVIDUALLY OWNED PATENT 7 4 3 2 4 20
E. I. DU PONT DE NEMOURS AND COMPANY 11 0 2 1 3 17
SUN DRILLING PRODUCTS CORP. 3 1 2 5 0 11
BASF SE 2 3 3 1 1 10
INTEVEP, S.A. 3 4 3 0 0 10
UNIVERSITY OF TEXAS 2 1 3 1 2 9
DORF KETAL SPECIALITY CATALYSTS, LLC 0 2 5 1 0 8
ELEMENTIS SPECIALTIES, INC. 1 3 1 1 2 8
EXXONMOBIL UPSTREAM RESEARCH COMPANY 0 1 3 2 1 7
SHELL OIL COMPANY 3 0 0 1 3 7
EMERY OLEOCHEMICALS GMBH 2 0 4 0 0 6
STEPAN COMPANY 1 4 0 0 1 6
3M INNOVATIVE PROPERTIES COMPANY 1 0 2 1 1 5
AKZO NOBEL NV 0 0 3 0 2 5
OXANE MATERIALS, INC. 0 0 3 0 2 5
RHODIA OPERATIONS 0 2 0 1 2 5
SAUDI ARABIAN OIL COMPANY 1 1 0 2 1 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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