Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports


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

Patenting In Technology Classes,
Breakout By Organization

Count of 2006 - 2010 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 2006 2007 2008 2009 2010 Total
HALLIBURTON ENERGY SERVICES, INC. 16 16 16 47 51 146
SCHLUMBERGER TECHNOLOGY CORPORATION 8 10 12 10 26 66
M-I L.L.C 6 10 5 10 10 41
BAKER HUGHES INCORPORATED 6 5 4 8 16 39
BJ SERVICES CO 5 3 1 9 4 22
~INDIVIDUALLY OWNED PATENT 2 1 1 9 7 20
E. I. DU PONT DE NEMOURS AND COMPANY 0 0 0 0 11 11
CLEARWATER INTERNATIONAL LLC. 0 2 1 2 2 7
SHELL OIL COMPANY 0 2 1 1 3 7
INSTITUT FRANCAIS DU PETROLE 0 4 0 0 2 6


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/


Top

Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports