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

Patenting In Technology Classes,
Breakout By Organization

Count of 2009 - 2013 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 2009 2010 2011 2012 2013 Total
HALLIBURTON ENERGY SERVICES, INC. 47 51 46 29 52 225
SCHLUMBERGER TECHNOLOGY CORPORATION 10 26 24 12 10 82
BAKER HUGHES INCORPORATED 8 16 26 14 13 77
M-I L.L.C 10 10 9 10 7 46
~INDIVIDUALLY OWNED PATENT 9 7 4 3 2 25
CLEARWATER INTERNATIONAL LLC. 2 2 7 3 6 20
NALCO COMPANY 0 0 9 5 4 18
E. I. DU PONT DE NEMOURS AND COMPANY 0 11 0 2 1 14
BJ SERVICES CO 9 4 0 0 0 13
INTEVEP, S.A. 1 3 4 3 0 11
SUN DRILLING PRODUCTS CORP. 0 3 1 2 5 11
BASF SE 1 1 3 3 1 9
DORF KETAL SPECIALITY CATALYSTS, LLC 0 0 2 5 1 8
UNIVERSITY OF TEXAS 1 2 1 3 1 8
EXXONMOBIL UPSTREAM RESEARCH COMPANY 1 0 1 3 2 7
ELEMENTIS SPECIALTIES, INC. 0 1 3 1 1 6
EMERY OLEOCHEMICALS GMBH 0 2 0 4 0 6
SAUDI ARABIAN OIL COMPANY 2 1 1 0 2 6
3M INNOVATIVE PROPERTIES COMPANY 1 1 0 2 1 5
SHELL OIL COMPANY 1 3 0 0 1 5
STEPAN COMPANY 0 1 4 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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