Assignee
NAT OILWELL VARCO LP
US·373 granted patents·95 pending applications·2,563 citations·filing 2003–2025
Top patents by PatentIndex Score
468 records- 0199US10995564B2System for handling tubulars on a rigNAT OILWELL VARCO LP·Filed 2019·Granted May 4, 2021·166 cites·19 claims
- 0297US10024123B2Coiled tubing injector with hydraulic traction slip mitigation circuit and method of useNAT OILWELL VARCO LP·Filed 2014·Granted Jul 17, 2018·152 cites·22 claims
- 0397US10008912B2Magnetic drive devices, and related systems and methodsNAT OILWELL VARCO LP·Filed 2013·Granted Jun 26, 2018·154 cites·27 claims
- 0497US9091126B2Mobile drilling rig with telescoping substructure boxesNAT OILWELL VARCO LP·Filed 2013·Granted Jul 28, 2015·54 cites·25 claims
- 0597US8869916B2Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filterNAT OILWELL VARCO LP·Filed 2013·Granted Oct 28, 2014·38 cites·35 claims
- 0696US9366053B2Mobile drilling rig with telescoping substructure boxesNAT OILWELL VARCO LP·Filed 2015·Granted Jun 14, 2016·22 cites·18 claims
- 0796US9353593B1Handler for blowout preventer assemblyNAT OILWELL VARCO LP·Filed 2015·Granted May 31, 2016·62 cites·22 claims
- 0896US9091125B2Collapsible substructure for a mobile drilling rigNAT OILWELL VARCO LP·Filed 2013·Granted Jul 28, 2015·37 cites·26 claims
- 0996US8904716B2Bi-directionally raisable drilling rig mastNAT OILWELL VARCO LP·Filed 2013·Granted Dec 9, 2014·29 cites·29 claims
- 1096US8365754B2Valve cover assembly and method of using the sameNAT OILWELL VARCO LP·Filed 2009·Granted Feb 5, 2013·61 cites·24 claims
- 1195US9316067B1Coiled tubing injector handlerNAT OILWELL VARCO LP·Filed 2015·Granted Apr 19, 2016·30 cites·13 claims
- 1295US9169710B2Wellsite connector with piston driven collets and method of using sameNAT OILWELL VARCO LP·Filed 2013·Granted Oct 27, 2015·23 cites·30 claims
- 1395US9163462B2Bi-directionally raisable drilling rig mastNAT OILWELL VARCO LP·Filed 2014·Granted Oct 20, 2015·22 cites·20 claims
- 1495US8950512B2Methods and apparatus for reducing stick-slipNAT OILWELL VARCO LP·Filed 2013·Granted Feb 10, 2015·31 cites·31 claims
- 1594US11035183B2Devices, systems, and methods for top drive clearingNAT OILWELL VARCO LP·Filed 2019·Granted Jun 15, 2021·15 cites·20 claims
- 1694US9885231B2Methods and apparatus for reducing stick-slipNAT OILWELL VARCO LP·Filed 2015·Granted Feb 6, 2018·12 cites·34 claims
- 1793US11613940B2Devices, systems, and methods for robotic pipe handlingNAT OILWELL VARCO LP·Filed 2019·Granted Mar 28, 2023·11 cites·19 claims
- 1893US11274508B2Robotic pipe handling from outside a setback areaNAT OILWELL VARCO LP·Filed 2020·Granted Mar 15, 2022·13 cites·14 claims
- 1993US11228275B2Methods and apparatus for installing solar panelsNAT OILWELL VARCO LP·Filed 2020·Granted Jan 18, 2022·12 cites·19 claims
- 2093US9593567B2Automated drilling systemNAT OILWELL VARCO LP·Filed 2012·Granted Mar 14, 2017·46 cites·20 claims
- 2193US9556676B2Collapsible substructure for a mobile drilling rigNAT OILWELL VARCO LP·Filed 2015·Granted Jan 31, 2017·9 cites·20 claims
- 2293US9546545B2Multi-level wellsite monitoring system and method of using sameNAT OILWELL VARCO LP·Filed 2015·Granted Jan 17, 2017·17 cites·22 claims
- 2393US9080299B2Windmill conveyance system and method for using sameNAT OILWELL VARCO LP·Filed 2013·Granted Jul 14, 2015·8 cites·12 claims
- 2493US8770274B2Shear seal blowout preventerNAT OILWELL VARCO LP·Filed 2013·Granted Jul 8, 2014·16 cites·20 claims
- 2593US7926501B2Subsea pressure systems for fluid recoveryNAT OILWELL VARCO LP·Filed 2007·Granted Apr 19, 2011·29 cites·18 claims
- 2692US11905777B2Downhole friction reduction systems having a flexible agitatorNAT OILWELL VARCO LP·Filed 2022·Granted Feb 20, 2024·2 cites·19 claims
- 2792US11365592B1Robot end-effector orientation constraint for pipe tailing pathNAT OILWELL VARCO LP·Filed 2021·Granted Jun 21, 2022·13 cites·15 claims
- 2892US10337638B2Slow-shift SPM valveNAT OILWELL VARCO LP·Filed 2015·Granted Jul 2, 2019·7 cites·19 claims
- 2992US10054917B2Drilling direct control user interfaceNAT OILWELL VARCO LP·Filed 2015·Granted Aug 21, 2018·18 cites·34 claims
- 3092US9464488B2Performing simultaneous operations on multiple wellbore locations using a single mobile drilling rigNAT OILWELL VARCO LP·Filed 2013·Granted Oct 11, 2016·20 cites·32 claims
- 3192US9273529B2Downhole pulse generating deviceNAT OILWELL VARCO LP·Filed 2013·Granted Mar 1, 2016·26 cites·18 claims
- 3292US8863449B2Substructure of a mobile drilling rig with a movable center floor sectionNAT OILWELL VARCO LP·Filed 2013·Granted Oct 21, 2014·19 cites·27 claims
- 3392US8016037B2Drilling rigs with apparatus identification systems and methodsNAT OILWELL VARCO LP·Filed 2009·Granted Sep 13, 2011·40 cites·23 claims
- 3491US10408274B2Universal driveshaft assemblyNAT OILWELL VARCO LP·Filed 2015·Granted Sep 10, 2019·5 cites·22 claims
- 3591US9658130B2Blowout preventer monitoring system and method of using sameNAT OILWELL VARCO LP·Filed 2013·Granted May 23, 2017·19 cites·25 claims
- 3691US9598923B2Downhole pulse generating device for through-bore operationsNAT OILWELL VARCO LP·Filed 2013·Granted Mar 21, 2017·30 cites·22 claims
- 3791US9593753B2Magnetic gears, and related systems and methodsNAT OILWELL VARCO LP·Filed 2013·Granted Mar 14, 2017·11 cites·19 claims
- 3891US9249643B2Blowout preventer with wedge ram assembly and method of using sameNAT OILWELL VARCO LP·Filed 2013·Granted Feb 2, 2016·23 cites·21 claims
- 3991US9212778B2Apparatus and method for positioning connection equipment on a drilling rigNAT OILWELL VARCO LP·Filed 2012·Granted Dec 15, 2015·21 cites·16 claims
- 4091US8727018B1Charging unit, system and method for activating a wellsite componentNAT OILWELL VARCO LP·Filed 2013·Granted May 20, 2014·10 cites·34 claims
- 4191US7665530B2Tubular grippers and top drive systemsNAT OILWELL VARCO LP·Filed 2007·Granted Feb 23, 2010·44 cites·11 claims
- 4291US7540338B2Single joint drilling system with inclined pipe handling systemNAT OILWELL VARCO LP·Filed 2006·Granted Jun 2, 2009·37 cites·17 claims
- 4390US11002104B2Plug assemblies for a subterranean wellboreNAT OILWELL VARCO LP·Filed 2019·Granted May 11, 2021·12 cites·20 claims
- 4490US10415364B2Method and apparatus for reducing stick-slipNAT OILWELL VARCO LP·Filed 2016·Granted Sep 17, 2019·5 cites·18 claims
- 4590US10273752B2Drilling control and information systemNAT OILWELL VARCO LP·Filed 2013·Granted Apr 30, 2019·19 cites·13 claims
- 4690US10053934B2Floor mounted racking arm for handling drill pipeNAT OILWELL VARCO LP·Filed 2014·Granted Aug 21, 2018·34 cites·31 claims
- 4790US9650840B2Method and apparatus for erecting a drilling rigNAT OILWELL VARCO LP·Filed 2015·Granted May 16, 2017·19 cites·20 claims
- 4890US9476263B2Rotary steerable push-the-bit drilling apparatus with self-cleaning fluid filterNAT OILWELL VARCO LP·Filed 2014·Granted Oct 25, 2016·12 cites·23 claims
- 4990US9347269B2Adjustable bend assembly for a downhole motorNAT OILWELL VARCO LP·Filed 2013·Granted May 24, 2016·12 cites·48 claims
- 5090US7841415B2Iron roughneck extension systemsNAT OILWELL VARCO LP·Filed 2008·Granted Nov 30, 2010·54 cites·16 claims
Showing the top 50 of 468 patent records by PatentIndex Score.
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