NATIONAL OILWELL VARCO UK LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 1482
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL268
 
  
 
1502 PUMPS AND COMPRESSORS116

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9803432 Roller deviceNov 14, 13Oct 31, 17[E21B]
9689211 Connector device for use in wireline intervention operationsDec 28, 12Jun 27, 17[F16L, E21B]
9644447 Wireline pressure control apparatusDec 06, 12May 09, 17[E21B, F16J]
9206668 ValveOct 02, 12Dec 08, 15[E21B]
D732086 Wireline roller deviceMay 10, 13Jun 16, 15[1502]
8967589 SealApr 24, 12Mar 03, 15[E21B]
8770541 Sealing apparatus and methodSep 01, 10Jul 08, 14[E21B]
7690434 Offshore vessel mooring and riser inboarding systemSep 30, 05Apr 06, 10[E21B]
7611120 Method and apparatusJun 01, 07Nov 03, 09[E21B]
6845958 Wireline valve actuatorSep 03, 02Jan 25, 05[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0198,524 ACTUATOR, VALVE AND METHODAbandonedFeb 15, 11Aug 18, 11[F16K, B21K]

Top Inventors for This Owner

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