TCO 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 1680
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271
 
  
 
F42C AMMUNITION FUZES 121
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0254,177 Injection DeviceJun 18, 15Sep 07, 17[E21B]
2016/0281,455 CRUSHABLE PLUGMar 17, 14Sep 29, 16[E21B]
2016/0024,873 METHOD AND STRUCTURE FOR PROTECTING A CRUSHABLE PLUG IN A PIPE SECTION FOR HYDROCARBON PRODUCTION, AND USE THEREOFFeb 05, 14Jan 28, 16[E21B]
2015/0369,016 METHOD AND MEANS TO PROTECT SENSITIVE EEQUIPMENT FROM IMPACT DAMAGES, AND USES THEREOFFeb 05, 14Dec 24, 15[E21B]
2015/0240,601 INJECTION DEVICESep 10, 13Aug 27, 15[E21B]
2014/0138,078 Tool and Method to Plug and Abandon WellFeb 03, 12May 22, 14[E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9765600 Puncher toolAug 16, 13Sep 19, 17[E21B]
9540905 Injection deviceApr 05, 12Jan 10, 17[F16K, E21B]
9316330 Apparatus for flow regulationJun 15, 11Apr 19, 16[F16K, G05D, E21B]
9234405 Device for a fluid operated valve body and method for operation of the valve bodyNov 29, 10Jan 12, 16[E21B]
9222322 Plug construction comprising a hydraulic crushing bodyApr 08, 09Dec 29, 15[E21B]
9194205 Device for a plug construction for conducting well testsMar 30, 11Nov 24, 15[E21B]
8671968 Device for pressure testing of pipesMar 16, 09Mar 18, 14[F16K, E21B]
8397813 Device for a test plugApr 17, 08Mar 19, 13[E21B]
8322448 Device for plug removalMar 06, 09Dec 04, 12[E21B]
8210105 Method and device for detonating an explosive chargeJan 03, 07Jul 03, 12[F42D, F42C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0228,338 Device for Operating Downhole EquipmentAbandonedOct 21, 11Sep 05, 13[E21B]

Top Inventors for This Owner

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