NATIONAL OILWELL VARCO NORWAY AS

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 2967
 
  
 
B66C CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES 526
 
  
 
B66D CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS 516
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 434
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 359
 
  
 
B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING242
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 243
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL268
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR265

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0314,369 DRILLING RIGNov 13, 15Nov 02, 17[H04N, F16P, E21B, G06K]
2016/0137,466 System for Hoisting a Load on an Offshore RigJun 25, 14May 19, 16[B66D, E21B]
2015/0167,783 DEVICE FOR CONNECTING FIRST AND SECOND ELONGATED MEMBERSJun 12, 13Jun 18, 15[F16G]
2015/0048,218 SUPPORTING DEVICE FOR CABLES AND METHOD FOR USING THE SAMEMar 21, 13Feb 19, 15[F16L, H02G]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9915147 Method and apparatus for real-time fluid compressibility measurementsJun 19, 13Mar 13, 18[G01N, F04B, E21B]
9752394 Die holder device and method for utilizing the sameMay 29, 13Sep 05, 17[B25B, E21B]
9701519 Lifting tool for opposing twisting of generally submerged ropesNov 02, 11Jul 11, 17[B63B, B66C]
9624762 System and method for reducing drillstring oscillationsJan 17, 13Apr 18, 17[E21B]
9586322 Method and device for treatment of a pipestring section that is positioned in a set-backMar 25, 11Mar 07, 17[F16L, B08B, B25J, E21B]
9476417 Method and system for detection and localization of a fluid related to a piston machineNov 18, 11Oct 25, 16[G01H, G01M, F04B, G06F]
9428972 Simultaneous clamp and torque driveSep 28, 12Aug 30, 16[F16H, E21B]
9382927 Apparatus and method for recuperation of hydraulic energyMay 18, 11Jul 05, 16[F15B, F16D, B66C]
9371113 Tow line controlling device and method of controlling sameApr 29, 13Jun 21, 16[B66D, B63B]
9303468 Drilling system and a device for assembling and disassembling pipe standsNov 02, 11Apr 05, 16[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0352,996 APPARATUS AND METHOD FOR TRANSFERRING ELECTRICAL POWER TO A ROTATING SHAFTAbandonedDec 06, 12Dec 04, 14[B23B, H02J, H01F]
2013/0213,919 Method for Reducing Dynamic Loads of CranesAbandonedMar 17, 11Aug 22, 13[B66C]
2010/0263,495 Device for a Power TongAbandonedOct 30, 08Oct 21, 10[B25B]
2009/0241,642 Method for Determination of a Leakage on a Piston MachineAbandonedApr 10, 06Oct 01, 09[G01M]
7130751 Method and device for detecting leaks in reciprocating machineryExpiredApr 10, 03Oct 31, 06[G01M]
6835026 Riser tensioning arrangementExpiredMar 29, 04Dec 28, 04[E21B]
6110367 Closed device for treatment of drilling fluids and cuttingsExpiredJul 27, 99Aug 29, 00[E21B, B01D]

Top Inventors for This Owner

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