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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →