Inventor · disambiguated record
Geoff Downton
Also filed as: DOWNTON GEOFF
37 granted patents·5 pending applications·734 citations·filing 2000–2018
98Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP17DOWNTON GEOFF9JOHNSON ASHLEY BERNARD3SHEPPARD MICHAEL CHARLES3IGNOVA MAJA1
Top patents by PatentIndex Score
42 records- 0190US7836975B2Morphable bitSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Nov 23, 2010·38 cites·22 claims
- 0288US7136795B2Control method for use with a steerable drilling systemSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Nov 14, 2006·90 cites·3 claims
- 0387US8763726B2Drill bit gauge pad controlJOHNSON ASHLEY BERNARD·Filed 2008·Granted Jul 1, 2014·32 cites·6 claims
- 0487US8146679B2Valve-controlled downhole motorDOWNTON GEOFF·Filed 2008·Granted Apr 3, 2012·16 cites·26 claims
- 0585US6601658B1Control method for use with a steerable drilling systemSCHLUMBERGER WCP LTD·Filed 2000·Granted Aug 5, 2003·80 cites·11 claims
- 0684US7896628B2Downhole motor seal and methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Mar 1, 2011·10 cites·8 claims
- 0784US7188685B2Hybrid rotary steerable systemSCHLUMBERGE TECHNOLOGY CORP·Filed 2002·Granted Mar 13, 2007·88 cites·6 claims
- 0883US10633923B2Slidable rod downhole steeringNOVATEK IP LLC·Filed 2018·Granted Apr 28, 2020·3 cites·20 claims
- 0983US8534380B2System and method for directional drilling a borehole with a rotary drilling systemSHEPPARD MICHAEL CHARLES·Filed 2008·Granted Sep 17, 2013·22 cites·16 claims
- 1083US7058512B2Downhole rate of penetration sensor assembly and methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Jun 6, 2006·24 cites·19 claims
- 1180US8783382B2Directional drilling control devices and methodsIGNOVA MAJA·Filed 2009·Granted Jul 22, 2014·23 cites·13 claims
- 1280US7810585B2Bi-directional rotary steerable system actuator assembly and methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Oct 12, 2010·19 cites·18 claims
- 1378US8658074B2Automatic elastomer extrusion apparatus and methodDOWNTON GEOFF·Filed 2011·Granted Feb 25, 2014·2 cites·7 claims
- 1477US7775299B2Method and apparatus for programmable pressure drilling and programmable gradient drilling, and completionKHAN WAQAR·Filed 2007·Granted Aug 17, 2010·17 cites·16 claims
- 1576US8302705B2Steering systemDOWNTON GEOFF·Filed 2007·Granted Nov 6, 2012·15 cites·11 claims
- 1674US8960329B2Steerable piloted drill bit, drill system, and method of drilling curved boreholesDOWNTON GEOFF·Filed 2008·Granted Feb 24, 2015·13 cites·22 claims
- 1774US8645571B2System and method for managing and/or using data for tools in a wellboreDOWNTON GEOFF·Filed 2009·Granted Feb 4, 2014·12 cites·5 claims
- 1874US7669669B2Tool face sensor methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Mar 2, 2010·15 cites·18 claims
- 1974US7168510B2Electrical transmission apparatus through rotating tubular membersSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Jan 30, 2007·43 cites·23 claims
- 2073US8011452B2Steerable drilling systemSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Sep 6, 2011·27 cites·10 claims
- 2173US7968184B2Erosion resistant surface and method of making erosion resistant surfacesSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Jun 28, 2011·15 cites·20 claims
- 2271US8066085B2Stochastic bit noise controlJOHNSON ASHLEY BERNARD·Filed 2008·Granted Nov 29, 2011·10 cites·10 claims
- 2370US7987927B2Steering of bent housing mud motor downhole rotation deviceSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Aug 2, 2011·11 cites·21 claims
- 2468US9035788B2Real time telemetryDOWNTON GEOFF·Filed 2007·Granted May 19, 2015·13 cites·7 claims
- 2568US8893824B2Steerable drilling systemDOWNTON GEOFF·Filed 2011·Granted Nov 25, 2014·2 cites·18 claims
- 2666US8408333B2Steer systems for coiled tubing drilling and method of usePAI SATISH·Filed 2007·Granted Apr 2, 2013·15 cites·19 claims
- 2765US8550185B2Stochastic bit noiseJOHNSON ASHLEY BERNARD·Filed 2011·Granted Oct 8, 2013·2 cites·17 claims
- 2864US8720605B2System for directionally drilling a borehole with a rotary drilling systemSHEPPARD MICHAEL CHARLES·Filed 2011·Granted May 13, 2014·2 cites·11 claims
- 2961US6877241B2Measurement of curvature of a subsurface borehole, and use of such measurement in directional drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Apr 12, 2005·23 cites·24 claims
- 3060US8967296B2Rotary steerable drilling apparatus and methodDOWNTON GEOFF·Filed 2006·Granted Mar 3, 2015·6 cites·9 claims
- 3157US7941906B2Progressive cavity apparatus with transducer and methods of forming and useSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted May 17, 2011·1 cites·13 claims
- 3257US7168507B2Recalibration of downhole sensorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Jan 30, 2007·18 cites·38 claims
- 3354US9284782B2Eccentric steering device and methods of directional drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Granted Mar 15, 2016·0 cites·8 claims
- 3452US2008023123A1Automatic elastomer extrusion apparatus and methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Application pending·0 cites
- 3551US8720604B2Method and system for steering a directional drilling systemSHEPPARD MICHAEL CHARLES·Filed 2008·Granted May 13, 2014·3 cites·18 claims
- 3651US6715570B1Two stage downhole drilling fluid filterSCHUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Apr 6, 2004·21 cites·21 claims
- 3749US7916041B2Hole depth sensingSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Mar 29, 2011·1 cites·6 claims
- 3849US2012012396A1Steerable drilling systemDOWNTON GEOFF·Filed 2011·Application pending·0 cites
- 3945US2008142269A1Bi stable actuator and drilling system inlcuding sameRICHARDS EDWARD·Filed 2006·Application pending·0 cites
- 4040US7383898B2Inner and outer motor with eccentric stabilizerSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Jun 10, 2008·2 cites·10 claims
- 4133US2004050590A1Downhole closed loop control of drilling trajectoryFiled 2002·Application pending·0 cites
- 4231US2006263215A1Roll stabilised unitSINDT OLIVER·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →