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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 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 2009 2010 2011 2012 2013 Total
BAKER HUGHES INCORPORATED 35 55 70 62 47 269
~INDIVIDUALLY OWNED PATENT 58 67 37 50 41 253
SCHLUMBERGER TECHNOLOGY CORPORATION 10 32 48 37 42 169
SMITH INTERNATIONAL INC. 21 50 36 20 28 155
HALLIBURTON ENERGY SERVICES, INC. 17 7 17 18 17 76
U.S. SYNTHETIC CORPORATION 8 8 16 12 18 62
LONGYEAR TM, INC. 1 5 17 7 8 38
WEATHERFORD/LAMB, INC. 1 8 5 6 6 26
VAREL INTERNATIONAL IND., L.P. 0 3 1 8 12 24
NATIONAL-OILWELL VARCO, L.P. 3 4 6 2 5 20
ATLAS COPCO ROCK DRILLS AB 0 5 7 2 4 18
SHELL OIL COMPANY 5 3 1 6 3 18
VERMEER MANUFACTURING COMPANY, INC. 2 5 2 4 3 16
TESCO CORP 5 4 2 4 0 15
ATLAS COPCO SECOROC LLC 0 2 3 4 5 14
SANDVIK MINING AND CONSTRUCTION OY 1 3 2 4 4 14
HILTI AKTIENGESELLSCHAFT 8 1 1 3 0 13
M-I L.L.C 1 4 2 3 3 13
PDTI HOLDINGS, LLC 0 3 5 3 2 13
MERLIN TECHNOLOGY, INC. 2 2 3 1 4 12
CANRIG DRILLING TECHNOLOGY LTD. 0 3 1 2 5 11
CHARLES MACHINE WORKS, INC. 4 2 2 2 1 11
SANDVIK INTELLECTUAL PROPERTY AB 2 2 2 5 0 11
WWT INTERNATIONAL, INC. 0 2 5 2 2 11
BAUER MASCHINEN GMBH 3 2 3 0 2 10
VARCO I/P, INC. 5 2 1 0 0 8
TDY INDUSTRIES, INC. 1 0 2 3 1 7
APS TECHNOLOGY, INC. 0 2 1 2 1 6
EXXONMOBIL UPSTREAM RESEARCH COMPANY 0 1 2 0 3 6
OMNI IP LTD 0 4 1 1 0 6
TRACTO-TECHNIK GMBH & CO. KG 0 1 3 1 1 6
EAGLE ROCK MANUFACTURING, LLC 4 1 0 0 0 5
KENNAMETAL INC. 1 1 3 0 0 5
SDG, LLC 0 0 1 2 2 5
SMART STABILIZER SYSTEMS LIMITED 1 1 1 1 1 5
VITRUVIAN EXPLORATION, LLC 0 0 0 2 3 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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