Assignee
HYDRIL CO LP
US·12 granted patents·1 pending application·298 citations·filing 2001–2007
Top patents by PatentIndex Score
13 records- 0187US7234530B2Ram BOP shear deviceHYDRIL CO LP·Filed 2004·Granted Jun 26, 2007·109 cites·13 claims
- 0287US7114751B2Composite liner for oilfield tubular goodsHYDRIL CO LP·Filed 2003·Granted Oct 3, 2006·22 cites·7 claims
- 0387US6976711B2Threaded connection especially for radially plastically expandable conduitHYDRIL CO LP·Filed 2002·Granted Dec 20, 2005·32 cites·31 claims
- 0483US7828337B2Threaded connection with wedge segmentsHYDRIL CO LP·Filed 2007·Granted Nov 9, 2010·9 cites·25 claims
- 0583US7246666B2Mounts for blowout preventer bonnetsHYDRIL CO LP·Filed 2006·Granted Jul 24, 2007·15 cites·7 claims
- 0681US7350765B2Double-stop floating ball valveHYDRIL CO LP·Filed 2005·Granted Apr 1, 2008·11 cites·23 claims
- 0777US7121348B2Mounts for blowout preventer bonnetsHYDRIL CO LP·Filed 2006·Granted Oct 17, 2006·10 cites·15 claims
- 0873US7810849B2Threads with perturbationsHYDRIL CO LP·Filed 2007·Granted Oct 12, 2010·9 cites·12 claims
- 0972US7156676B2Electrical contractors embedded in threaded connectionsHYDRIL CO LP·Filed 2004·Granted Jan 2, 2007·38 cites·17 claims
- 1072US7014212B2Tubular joint wear indicatorHYDRIL CO LP·Filed 2001·Granted Mar 21, 2006·15 cites·23 claims
- 1164US7243957B2Pseudo two-step connectionHYDRIL CO LP·Filed 2004·Granted Jul 17, 2007·23 cites·16 claims
- 1254US7357187B2BOP conversion apparatusHYDRIL CO LP·Filed 2005·Granted Apr 15, 2008·5 cites·12 claims
- 1334US2008023917A1Seal for blowout preventer with selective debondingHYDRIL CO LP·Filed 2007·Application pending·0 cites
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