Assignee
SPECIALISED PETROLEUM SERV LTD
US·41 granted patents·1 pending application·1,650 citations·filing 1997–2013
Top patents by PatentIndex Score
42 records- 0198US6253861B1Circulation toolSPECIALISED PETROLEUM SERV LTD·Filed 1999·Granted Jul 3, 2001·337 cites·15 claims
- 0294US6220357B1Downhole flow control toolSPECIALISED PETROLEUM SERV LTD·Filed 1998·Granted Apr 24, 2001·197 cites·7 claims
- 0392US7416029B2Downhole toolSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted Aug 26, 2008·160 cites·44 claims
- 0489US7500526B2Downhole toolSPECIALISED PETROLEUM SERV LTD·Filed 2005·Granted Mar 10, 2009·37 cites·17 claims
- 0588US8844622B2Wellbore cleaning method and apparatusSPECIALISED PETROLEUM SERV LTD·Filed 2013·Granted Sep 30, 2014·9 cites·17 claims
- 0683US7681650B2Valve seatSPECIALISED PETROLEUM SERV LTD·Filed 2005·Granted Mar 23, 2010·26 cites·21 claims
- 0781US6152221AApparatus with retractable cleaning membersSPECIALISED PETROLEUM SERV LTD·Filed 1999·Granted Nov 28, 2000·84 cites·5 claims
- 0880US8356670B2Ball seat assembly and method of controlling fluid flow through a hollow bodySPECIALISED PETROLEUM SERV LTD·Filed 2008·Granted Jan 22, 2013·18 cites·38 claims
- 0979US7322408B2Downhole tool with actuable barrierSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Jan 29, 2008·51 cites·19 claims
- 1078US7628213B2Multi-cycle downhole tool with hydraulic dampingSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Dec 8, 2009·49 cites·21 claims
- 1176US6102060ADetachable locking device for a control valve and methodSPECIALISED PETROLEUM SERV LTD·Filed 1998·Granted Aug 15, 2000·70 cites·18 claims
- 1275US6152220ADown-hole tool with centralising componentSPECIALISED PETROLEUM SERV LTD·Filed 1999·Granted Nov 28, 2000·64 cites·19 claims
- 1374US7096950B2Combined milling and scraping toolSPECIALISED PETROLEUM SERV LTD·Filed 2001·Granted Aug 29, 2006·41 cites·16 claims
- 1473US7510016B2PackerSPECIALISED PETROLEUM SERV LTD·Filed 2005·Granted Mar 31, 2009·13 cites·25 claims
- 1573US7497260B2Junk removal toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Mar 3, 2009·40 cites·14 claims
- 1673US6227291B1Compact well clean up tool with multifunction cleaning apparatusSPECIALISED PETROLEUM SERV LTD·Filed 1999·Granted May 8, 2001·60 cites·5 claims
- 1772US7383881B2Stabiliser, jetting and circulating toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Jun 10, 2008·38 cites·11 claims
- 1869US7992636B2Device and method for retrieving debris from a wellSPECIALISED PETROLEUM SERV LTD·Filed 2006·Granted Aug 9, 2011·11 cites·31 claims
- 1969US7735547B2Wellbore cleaning tool and methodSPECIALISED PETROLEUM SERV LTD·Filed 2006·Granted Jun 15, 2010·10 cites·37 claims
- 2068US7413023B2Wellhead seal unitSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Aug 19, 2008·25 cites·11 claims
- 2166US7870897B2Dual function cleaning toolSPECIALISED PETROLEUM SERV LTD·Filed 2009·Granted Jan 18, 2011·7 cites·12 claims
- 2265US7665545B2Pressure controlled downhole operationsSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted Feb 23, 2010·28 cites·28 claims
- 2365US7121343B2Selectively operational cleaning toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Oct 17, 2006·27 cites·28 claims
- 2465US6896064B2Compression set packer and method of useSPECIALISED PETROLEUM SERV LTD·Filed 2001·Granted May 24, 2005·28 cites·12 claims
- 2562US7757771B2Wellhead seal unitSPECIALISED PETROLEUM SERV LTD·Filed 2007·Granted Jul 20, 2010·5 cites·3 claims
- 2660US7530400B2Downhole tool for selectively catching balls in a well boreSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted May 12, 2009·21 cites·17 claims
- 2759US6497295B1Torque limiting toolSPECIALISED PETROLEUM SERV LTD·Filed 2000·Granted Dec 24, 2002·21 cites·13 claims
- 2856US7740073B2Wellhead seal unitSPECIALISED PETROLEUM SERV LTD·Filed 2007·Granted Jun 22, 2010·3 cites·2 claims
- 2955US7055605B2Downhole circulation valve operated by dropping ballsSPECIALISED PETROLEUM SERV LTD·Filed 2002·Granted Jun 6, 2006·17 cites·15 claims
- 3052US6302214B1Apparatus and method for inflating packers in a drilling wellSPECIALISED PETROLEUM SERV LTD·Filed 1999·Granted Oct 16, 2001·27 cites·28 claims
- 3152US6279657B1Apparatus and method for circulating fluid in a well boreSPECIALISED PETROLEUM SERV LTD·Filed 1998·Granted Aug 28, 2001·28 cites·8 claims
- 3250US6152228AApparatus and method for circulating fluid in a boreholeSPECIALISED PETROLEUM SERV LTD·Filed 1997·Granted Nov 28, 2000·27 cites·24 claims
- 3349US7191835B2Disengagable burr millSPECIALISED PETROLEUM SERV LTD·Filed 2002·Granted Mar 20, 2007·10 cites·14 claims
- 3449US2010065125A1Valve seat assembly, downhole tool and methodsSPECIALISED PETROLEUM SERV LTD·Filed 2008·Application pending·0 cites
- 3548US6343648B1Down-hole tool with detachable cleaning padsSPECIALISED PETROLEUM SERV LTD·Filed 1999·Granted Feb 5, 2002·23 cites·14 claims
- 3647US7237617B2Disengageable downhole toolSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Jul 3, 2007·9 cites·21 claims
- 3746US7322419B2Circulating sub and methodSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Jan 29, 2008·8 cites·24 claims
- 3844US7654316B2Downhole connectorSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted Feb 2, 2010·6 cites·13 claims
- 3944US7559374B2Dual function cleaning toolSPECIALISED PETROLEUM SERV LTD·Filed 2004·Granted Jul 14, 2009·5 cites·7 claims
- 4044US7314092B2PackerSPECIALISED PETROLEUM SERV LTD·Filed 2003·Granted Jan 1, 2008·6 cites·29 claims
- 4142US7228910B2Safety mechanism for weight-set downhole toolSPECIALISED PETROLEUM SERV LTD·Filed 2002·Granted Jun 12, 2007·4 cites·31 claims
- 4235US7152686B2Downhole weight bearing apparatus and methodSPECIALISED PETROLEUM SERV LTD·Filed 2002·Granted Dec 26, 2006·0 cites·13 claims
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