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

Patenting In Technology Classes,
Breakout By Organization

Count of 2008 - 2012 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 175, Boring or Penetrating the Earth

( 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 2008 2009 2010 2011 2012 Total
~INDIVIDUALLY OWNED PATENT 47 58 67 37 50 259
BAKER HUGHES INCORPORATED 20 35 55 70 62 242
SMITH INTERNATIONAL INC. 40 21 50 36 20 167
SCHLUMBERGER TECHNOLOGY CORPORATION 12 10 32 48 37 139
HALLIBURTON ENERGY SERVICES, INC. 19 17 7 17 18 78
U.S. SYNTHETIC CORPORATION 0 8 8 16 12 44
LONGYEAR TM, INC. 0 1 5 17 7 30
SHELL OIL COMPANY 11 5 3 1 6 26
WEATHERFORD/LAMB, INC. 4 1 8 5 6 24
CHARLES MACHINE WORKS, INC. 9 4 2 2 2 19
TESCO CORP 2 5 4 2 4 17
ATLAS COPCO ROCK DRILLS AB 1 0 5 7 2 15
NATIONAL-OILWELL VARCO, L.P. 0 3 4 6 2 15
SANDVIK INTELLECTUAL PROPERTY AB 4 2 2 2 5 15
VERMEER MANUFACTURING COMPANY, INC. 1 2 5 2 4 14
HILTI AKTIENGESELLSCHAFT 0 8 1 1 3 13
VARCO I/P, INC. 5 5 2 1 0 13
M-I L.L.C 2 1 4 2 3 12
VAREL INTERNATIONAL IND., L.P. 0 0 3 1 8 12
PDTI HOLDINGS, LLC 0 0 3 5 3 11
SANDVIK MINING AND CONSTRUCTION OY 1 1 3 2 4 11
ATLAS COPCO SECOROC LLC 1 0 2 3 4 10
BAUER MASCHINEN GMBH 1 3 2 3 0 9
MERLIN TECHNOLOGY, INC. 1 2 2 3 1 9
WWT INTERNATIONAL, INC. 0 0 2 5 2 9
APS TECHNOLOGY, INC. 2 0 2 1 2 7
J. H. FLETCHER & CO., INC. 5 1 0 1 0 7
WESTERN WELL TOOL, INC. 3 3 1 0 0 7
CANRIG DRILLING TECHNOLOGY LTD. 0 0 3 1 2 6
OMNI IP LTD 0 0 4 1 1 6
TDY INDUSTRIES, INC. 0 1 0 2 3 6
TRACTO-TECHNIK GMBH 2 0 0 3 1 6
ATBALANCE AMERICAS LLC 2 1 1 1 0 5
EAGLE ROCK MANUFACTURING, LLC 0 4 1 0 0 5
KENNAMETAL INC. 0 1 1 3 0 5
PARTICLE DRILLING TECHNOLOGIES, INC. 4 1 0 0 0 5
SMART STABILIZER SYSTEMS LIMITED 1 1 1 1 1 5
TRACTO-TECHNIK GMBH & CO. KG 0 0 1 3 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/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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