Assignee
DRIL QUIP INC
US·165 granted patents·13 pending applications·3,979 citations·filing 1981–2024
Top patents by PatentIndex Score
178 records- 0198US4995464AWell apparatus and methodDRIL QUIP INC·Filed 1989·Granted Feb 26, 1991·218 cites·26 claims
- 0297US6056324AThreaded connectorDRIL QUIP INC·Filed 1998·Granted May 2, 2000·167 cites·20 claims
- 0397US4496172ASubsea wellhead connectorsDRIL QUIP INC·Filed 1982·Granted Jan 29, 1985·128 cites·37 claims
- 0496US10947805B2Tubing hanger alignment deviceDRIL QUIP INC·Filed 2020·Granted Mar 16, 2021·7 cites·30 claims
- 0596US7331396B2Subsea production systemsDRIL QUIP INC·Filed 2005·Granted Feb 19, 2008·69 cites·31 claims
- 0696US6739398B1Liner hanger running tool and methodDRIL QUIP INC·Filed 2001·Granted May 25, 2004·134 cites·80 claims
- 0795US11414937B2Control/monitoring of internal equipment in a riser assemblyDRIL QUIP INC·Filed 2020·Granted Aug 16, 2022·4 cites·19 claims
- 0895US11180968B2Tubing hanger alignment deviceDRIL QUIP INC·Filed 2020·Granted Nov 23, 2021·17 cites·21 claims
- 0994US11459843B2Tubing hanger space-out mechanismDRIL QUIP INC·Filed 2020·Granted Oct 4, 2022·12 cites·20 claims
- 1094US6681860B1Downhole tool with port isolationDRIL QUIP INC·Filed 2001·Granted Jan 27, 2004·93 cites·21 claims
- 1194US4648627AStabbing connectorDRIL QUIP INC·Filed 1984·Granted Mar 10, 1987·80 cites·29 claims
- 1293US11952853B2Subsea equipment alignment deviceDRIL QUIP INC·Filed 2021·Granted Apr 9, 2024·3 cites·20 claims
- 1393US11773678B2Barrier arrangement in wellhead assemblyDRIL QUIP INC·Filed 2022·Granted Oct 3, 2023·8 cites·20 claims
- 1493US11199066B2Subsea equipment alignment deviceDRIL QUIP INC·Filed 2020·Granted Dec 14, 2021·4 cites·30 claims
- 1593US6575238B1Ball and plug dropping headDRIL QUIP INC·Filed 2001·Granted Jun 10, 2003·88 cites·2 claims
- 1693US4830408AConnector assemblyDRIL QUIP INC·Filed 1981·Granted May 16, 1989·78 cites·17 claims
- 1793US4757860AWellhead equipmentDRIL QUIP INC·Filed 1986·Granted Jul 19, 1988·122 cites·53 claims
- 1893US4659119ALatching connectorDRIL QUIP INC·Filed 1983·Granted Apr 21, 1987·77 cites·38 claims
- 1992US11767754B2Downhole fiber optic transmission for real-time well monitoring and downhole equipment actuationDRIL QUIP INC·Filed 2020·Granted Sep 26, 2023·6 cites·20 claims
- 2092US10830015B2Tubing hanger alignment deviceDRIL QUIP INC·Filed 2018·Granted Nov 10, 2020·5 cites·12 claims
- 2191US5143158ASubsea wellhead apparatusDRIL QUIP INC·Filed 1990·Granted Sep 1, 1992·144 cites·15 claims
- 2290US10612319B2Radial ratchet dog anti-rotation deviceDRIL QUIP INC·Filed 2017·Granted Apr 7, 2020·8 cites·20 claims
- 2390US8978770B2Systems and methods for riser couplingDRIL QUIP INC·Filed 2013·Granted Mar 17, 2015·17 cites·18 claims
- 2490US7581596B2Downhole tool with C-ring closure seat and methodDRIL QUIP INC·Filed 2007·Granted Sep 1, 2009·36 cites·24 claims
- 2590US7503391B2Tieback connectorDRIL QUIP INC·Filed 2005·Granted Mar 17, 2009·43 cites·25 claims
- 2690US6705615B2Sealing system and methodDRIL QUIP INC·Filed 2001·Granted Mar 16, 2004·96 cites·42 claims
- 2790US4491346AApparatus for releasably connecting tubular members in end-to-end relationDRIL QUIP INC·Filed 1982·Granted Jan 1, 1985·88 cites·59 claims
- 2890US4422507AWellhead apparatusDRIL QUIP INC·Filed 1981·Granted Dec 27, 1983·88 cites·12 claims
- 2989US11686172B2Tubing hanger alignment device with torsional spring alignment mechanismDRIL QUIP INC·Filed 2022·Granted Jun 27, 2023·1 cites·13 claims
- 3089US7090027B1Casing hanger assembly with rupture disk in support housing and methodDRIL QUIP INC·Filed 2003·Granted Aug 15, 2006·92 cites·15 claims
- 3188US11542778B2Barrier arrangement in wellhead assemblyDRIL QUIP INC·Filed 2019·Granted Jan 3, 2023·6 cites·20 claims
- 3288US9080404B2Method and system for interventionless hydraulic setting of equipment when performing subterranean operationsDRIL QUIP INC·Filed 2012·Granted Jul 14, 2015·12 cites·20 claims
- 3388US5634671ARiser connectorDRIL QUIP INC·Filed 1996·Granted Jun 3, 1997·127 cites·15 claims
- 3487US6966383B2Horizontal spool tree with improved portingDRIL QUIP INC·Filed 2003·Granted Nov 22, 2005·84 cites·51 claims
- 3586US11072984B2One trip lockdown sleeve and running toolDRIL QUIP INC·Filed 2020·Granted Jul 27, 2021·8 cites·17 claims
- 3686US9708863B2Riser monitoring system and methodDRIL-QUIP INC·Filed 2015·Granted Jul 18, 2017·5 cites·17 claims
- 3785US12181065B2Reduced stroke gate valveDRIL QUIP INC·Filed 2020·Granted Dec 31, 2024·2 cites·19 claims
- 3885US11834918B2Tubing hanger orientation spool adaptorDRIL QUIP INC·Filed 2019·Granted Dec 5, 2023·5 cites·20 claims
- 3985US6666276B1Downhole radial set packer elementDRIL QUIP INC·Filed 2001·Granted Dec 23, 2003·76 cites·25 claims
- 4085US5076356AWellhead equipmentDRIL QUIP INC·Filed 1989·Granted Dec 31, 1991·71 cites·24 claims
- 4184US5094270ADouble gated valveDRIL QUIP INC·Filed 1991·Granted Mar 10, 1992·46 cites·11 claims
- 4283US12234702B2Tubing hanger alignment deviceDRIL QUIP INC·Filed 2024·Granted Feb 25, 2025·0 cites·18 claims
- 4382US12152456B2Rigidized seal assembly using automated space-out mechanismDRIL QUIP INC·Filed 2022·Granted Nov 26, 2024·1 cites·18 claims
- 4481US11391123B2System and method for restoration of safety integrity level (SIL) capability in a subsea installationDRIL QUIP INC·Filed 2021·Granted Jul 19, 2022·2 cites·19 claims
- 4581US10605019B2Self-locking packer carrierDRIL QUIP INC·Filed 2018·Granted Mar 31, 2020·3 cites·18 claims
- 4680US7028777B2Open water running tool and lockdown sleeve assemblyDRIL QUIP INC·Filed 2003·Granted Apr 18, 2006·64 cites·34 claims
- 4779US9982502B2Metal to metal annulus seal with enhanced lock-down capacityDRIL QUIP INC·Filed 2016·Granted May 29, 2018·3 cites·23 claims
- 4879US7395866B2Method and apparatus for blow-out prevention in subsea drilling/completion systemsDRIL QUIP INC·Filed 2003·Granted Jul 8, 2008·51 cites·29 claims
- 4979US6805200B2Horizontal spool tree wellhead system and methodDRIL QUIP INC·Filed 2002·Granted Oct 19, 2004·47 cites·28 claims
- 5078US10527207B2High capacity universal connectorDRIL QUIP INC·Filed 2017·Granted Jan 7, 2020·2 cites·15 claims
Showing the top 50 of 178 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when DRIL QUIP INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →