TESCO CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 4752
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 254
 
  
 
E21C MINING OR QUARRYING220
 
  
 
B23Q DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING 139
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8807230 Control line installation unit and method of running a string of tubing into a wellAug 03, 11Aug 19, 14[E21B]
8739888 Mechanically actuated casing drive system toolApr 28, 11Jun 03, 14[E21B]
8701785 Shrinkable sleeve stabilizerJan 12, 11Apr 22, 14[E21B]
8651175 Top drive output torque measurement methodJan 14, 11Feb 18, 14[E21B]
8573312 Apparatus for applying an axial force to well pipe slipsDec 23, 10Nov 05, 13[E21B]
8439121 Hydraulic interlock system between casing gripper and spiderApr 21, 10May 14, 13[E21B]
8240371 Multi-function sub for use with casing running stringJun 15, 09Aug 14, 12[E21B]
8225864 Well string centralizer and method of formingDec 20, 07Jul 24, 12[E21B]
8191621 Casing stabbing guide and method of use thereofMay 29, 09Jun 05, 12[E21B]
8141629 Well string centralizer and method of formingMay 31, 07Mar 27, 12[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0098,692 DRILL BITAbandonedMar 18, 11Apr 25, 13[E21B]
2012/0204,411 PRESSURE CRIMPER WITH ELLIPTICAL FACEAbandonedFeb 10, 11Aug 16, 12[B23Q, B23P]
2010/0193,250 Cutting Structure for Casing Drilling UnderreamerAbandonedJan 30, 09Aug 05, 10[E21B]
2007/0240,908 TOP DRIVE ASSEMBLYAbandonedJun 20, 07Oct 18, 07[E21B]
2007/0068,703 METHOD FOR DRILLING AND CEMENTING A WELLAbandonedJul 17, 06Mar 29, 07[E21B]
2006/0096,785 Expandable bitAbandonedSep 05, 03May 11, 06[E21B]
2001/0042,625 Apparatus for facilitating the connection of tubulars using a top driveAbandonedJul 30, 01Nov 22, 01[E21B]

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