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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 )
| First-Named Assignee | 2011 | 2012 | 2013 | 2014 | 2015 | Total |
|---|---|---|---|---|---|---|
| BAKER HUGHES INCORPORATED | 70 | 62 | 47 | 56 | 86 | 321 |
| SCHLUMBERGER TECHNOLOGY CORPORATION | 48 | 37 | 42 | 54 | 47 | 228 |
| ~INDIVIDUALLY OWNED PATENT | 37 | 50 | 41 | 33 | 33 | 194 |
| SMITH INTERNATIONAL INC. | 36 | 20 | 28 | 41 | 27 | 152 |
| HALLIBURTON ENERGY SERVICES, INC. | 17 | 18 | 17 | 20 | 44 | 116 |
| U.S. SYNTHETIC CORPORATION | 16 | 12 | 18 | 16 | 12 | 74 |
| LONGYEAR TM, INC. | 17 | 7 | 8 | 9 | 5 | 46 |
| NATIONAL-OILWELL VARCO, L.P. | 6 | 2 | 5 | 8 | 11 | 32 |
| VAREL INTERNATIONAL IND., L.P. | 1 | 8 | 12 | 6 | 5 | 32 |
| WEATHERFORD/LAMB, INC. | 5 | 6 | 6 | 8 | 4 | 29 |
| ATLAS COPCO SECOROC LLC | 3 | 4 | 5 | 4 | 1 | 17 |
| SANDVIK MINING AND CONSTRUCTION OY | 2 | 4 | 4 | 2 | 5 | 17 |
| ATLAS COPCO ROCK DRILLS AB | 7 | 2 | 4 | 2 | 0 | 15 |
| MERLIN TECHNOLOGY, INC. | 3 | 1 | 4 | 4 | 2 | 14 |
| BAUER MASCHINEN GMBH | 3 | 0 | 2 | 4 | 4 | 13 |
| VERMEER MANUFACTURING COMPANY, INC. | 2 | 4 | 3 | 2 | 2 | 13 |
| FORO ENERGY, INC. | 0 | 0 | 2 | 6 | 4 | 12 |
| SHELL OIL COMPANY | 1 | 6 | 3 | 0 | 2 | 12 |
| CANRIG DRILLING TECHNOLOGY LTD. | 1 | 2 | 5 | 3 | 0 | 11 |
| SANDVIK INTELLECTUAL PROPERTY AB | 2 | 5 | 0 | 2 | 2 | 11 |
| TRACTO-TECHNIK GMBH & CO. KG | 3 | 1 | 1 | 1 | 5 | 11 |
| KENNAMETAL INC. | 3 | 0 | 0 | 3 | 4 | 10 |
| PDTI HOLDINGS, LLC | 5 | 3 | 2 | 0 | 0 | 10 |
| APS TECHNOLOGY, INC. | 1 | 2 | 1 | 3 | 2 | 9 |
| DOVER BMCS ACQUISITION CORPORATION | 0 | 1 | 2 | 2 | 4 | 9 |
| M-I L.L.C | 2 | 3 | 3 | 0 | 1 | 9 |
| WWT INTERNATIONAL, INC. | 5 | 2 | 2 | 0 | 0 | 9 |
| TESCO CORP | 2 | 4 | 0 | 0 | 2 | 8 |
| CENTER ROCK, INC. | 0 | 1 | 2 | 4 | 0 | 7 |
| CHARLES MACHINE WORKS, INC. | 2 | 2 | 1 | 0 | 2 | 7 |
| CHEVRON U.S.A. INC. | 1 | 0 | 2 | 1 | 3 | 7 |
| DIAMOND INNOVATIONS, INC. | 0 | 1 | 0 | 1 | 5 | 7 |
| EXXONMOBIL UPSTREAM RESEARCH COMPANY | 2 | 0 | 3 | 1 | 1 | 7 |
| SAUDI ARABIAN OIL COMPANY | 1 | 0 | 0 | 0 | 6 | 7 |
| SDG, LLC | 1 | 2 | 2 | 0 | 1 | 6 |
| TDY INDUSTRIES, INC. | 2 | 3 | 1 | 0 | 0 | 6 |
| BP CORPORATION NORTH AMERICA INC. | 2 | 0 | 0 | 2 | 1 | 5 |
| EARTH TOOL COMPANY, L.L.C. | 0 | 1 | 0 | 4 | 0 | 5 |
| HUNT ADVANCED DRILLING TECHNOLOGIES, L.L.C. | 0 | 0 | 1 | 3 | 1 | 5 |
| INTELLISERV, LLC | 0 | 2 | 1 | 1 | 1 | 5 |
| MANAGED PRESSURE OPERATIONS PTE. LTD. | 0 | 0 | 1 | 2 | 2 | 5 |
| NATIONAL-OILWELL DHT, L.P. | 0 | 0 | 0 | 3 | 2 | 5 |
| SOILMEC S.P.A. | 0 | 0 | 2 | 0 | 3 | 5 |
| TERCEL IP LTD. | 0 | 0 | 0 | 1 | 4 | 5 |
| VAM DRILLING FRANCE | 0 | 0 | 1 | 2 | 2 | 5 |
| VAREL EUROPE S.A.S. | 0 | 0 | 1 | 0 | 4 | 5 |
| VITRUVIAN EXPLORATION, LLC | 0 | 2 | 3 | 0 | 0 | 5 |
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 22313-1450tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.govaddress 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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