Inventor · disambiguated record
James V. Leggett, Iii
Also filed as: LEGGETT III JAMES V · LEGGETT III JAMES VERNA · LEGGETT JAMES V · LEGGETT JAMES V III
36 granted patents·2 pending applications·4,799 citations·filing 1993–2024
98Inventor score
Files withBAKER HUGHES INC29BAKER HUGHES OILFIELD OPERATIONS LLC3BAKER HUGHES CORP1HAN WEI1LEGGETT III JAMES V1
Top patents by PatentIndex Score
38 records- 0199US6021377ADrilling system utilizing downhole dysfunctions for determining corrective actions and simulating drilling conditionsBAKER HUGHES INC·Filed 1996·Granted Feb 1, 2000·506 cites·26 claims
- 0299US5842149AClosed loop drilling systemBAKER HUGHES INC·Filed 1996·Granted Nov 24, 1998·468 cites·33 claims
- 0398US6084826AMeasurement-while-drilling acoustic system employing multiple, segmented transmitters and receiversBAKER HUGHES INC·Filed 1998·Granted Jul 4, 2000·302 cites·24 claims
- 0498US6041860AApparatus and method for performing imaging and downhole operations at a work site in wellboresBAKER HUGHES INC·Filed 1997·Granted Mar 28, 2000·308 cites·62 claims
- 0597US6088294ADrilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling directionBAKER HUGHES INC·Filed 1997·Granted Jul 11, 2000·465 cites·65 claims
- 0697US5812068ADrilling system with downhole apparatus for determining parameters of interest and for adjusting drilling direction in response theretoBAKER HUGHES INC·Filed 1995·Granted Sep 22, 1998·433 cites·32 claims
- 0796US6614360B1Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receiversBAKER HUGHES INC·Filed 2000·Granted Sep 2, 2003·132 cites·28 claims
- 0896US6272434B1Drilling system with downhole apparatus for determining parameters of interest and for adjusting drilling direction in response theretoBAKER HUGHES INC·Filed 2000·Granted Aug 7, 2001·318 cites·81 claims
- 0996US6233524B1Closed loop drilling systemBAKER HUGHES INC·Filed 1999·Granted May 15, 2001·379 cites·27 claims
- 1095US6065538AMethod of obtaining improved geophysical information about earth formationsBAKER HUGHES CORP·Filed 1997·Granted May 23, 2000·169 cites·59 claims
- 1194US7463551B2Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applicationsBAKER HUGHES INC·Filed 2007·Granted Dec 9, 2008·32 cites·12 claims
- 1294US6427124B1Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundariesBAKER HUGHES INC·Filed 1999·Granted Jul 30, 2002·208 cites·20 claims
- 1394US5592438AMethod and apparatus for communicating data in a wellbore and for detecting the influx of gasBAKER HUGHES INC·Filed 1993·Granted Jan 7, 1997·160 cites·88 claims
- 1493US6209640B1Method of obtaining improved geophysical information about earth formationsBAKER HUGHES INC·Filed 2000·Granted Apr 3, 2001·95 cites·22 claims
- 1592US7301852B2Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applicationsBAKER HUGHES INC·Filed 2003·Granted Nov 27, 2007·64 cites·14 claims
- 1692US6930616B2Method and apparatus for LWD shear velocity measurementBAKER HUGHES INC·Filed 2004·Granted Aug 16, 2005·77 cites·33 claims
- 1791US9103196B2Pipelined pulse-echo scheme for an acoustic image tool for use downholeZHAO JINSONG·Filed 2011·Granted Aug 11, 2015·16 cites·20 claims
- 1891US7652951B2Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applicationsBAKER HUGHES INC·Filed 2007·Granted Jan 26, 2010·24 cites·6 claims
- 1990US6769497B2Use of axial accelerometer for estimation of instantaneous ROP downhole for LWD and wireline applicationsBAKER HUGHES INC·Filed 2002·Granted Aug 3, 2004·100 cites·17 claims
- 2089US6909666B2Method and apparatus for generating acoustic signals for LWD shear velocity measurementBAKER HUGHES INC·Filed 2004·Granted Jun 21, 2005·53 cites·49 claims
- 2189US6208586B1Method and apparatus for communicating data in a wellbore and for detecting the influx of gasBAKER HUGHES INC·Filed 1998·Granted Mar 27, 2001·109 cites·15 claims
- 2288US5850369AMethod and apparatus for communicating data in a wellbore and for detecting the influx of gasBAKER HUGHES INC·Filed 1997·Granted Dec 15, 1998·102 cites·43 claims
- 2387US6253848B1Method of obtaining improved geophysical information about earth formationsBAKER HUGHES INC·Filed 2000·Granted Jul 3, 2001·56 cites·30 claims
- 2486US9720121B2Devices and methods for downhole acoustic imagingZHOU QUMING·Filed 2015·Granted Aug 1, 2017·7 cites·20 claims
- 2584US7966874B2Multi-resolution borehole profilingBAKER HUGHES INC·Filed 2008·Granted Jun 28, 2011·26 cites·19 claims
- 2682US11359488B2Self-calibrated method of determining borehole fluid acoustic propertiesBAKER HUGHES OILFIELD OPERATIONS LLC·Filed 2019·Granted Jun 14, 2022·2 cites·2 claims
- 2780US6850168B2Method and apparatus for LWD shear velocity measurementBAKER HUGHES INC·Filed 2001·Granted Feb 1, 2005·44 cites·36 claims
- 2880US6023443ASemblance processing for an acoustic measurement-while-drilling system for imaging of formation boundariesBAKER HUGHES INC·Filed 1998·Granted Feb 8, 2000·84 cites·18 claims
- 2978US2025020058A1Self-calibrated method of determining borehole fluid acoustic propertiesBAKER HUGHES OILFIELD OPERATIONS LLC·Filed 2024·Application pending·0 cites
- 3077US10408053B2Encapsulated phased array segment for downhole applicationsBAKER HUGHES INC·Filed 2016·Granted Sep 10, 2019·3 cites·11 claims
- 3173US9567846B2Devices and methods for downhole acoustic imagingLEGGETT III JAMES V·Filed 2014·Granted Feb 14, 2017·6 cites·20 claims
- 3272US12359564B2Self-calibrated method of determining borehole fluid acoustic propertiesHAN WEI·Filed 2022·Granted Jul 15, 2025·0 cites·14 claims
- 3366US6581010B2Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundariesBAKER HUGHES INC·Filed 2002·Granted Jun 17, 2003·28 cites·20 claims
- 3461US6985086B2Method and apparatus for LWD shear velocity measurementBAKER HUGHES INC·Filed 2004·Granted Jan 10, 2006·20 cites·19 claims
- 3560US10684384B2Systems and method for formation evaluation from boreholeBAKER HUGHES OILFIELD OPERATIONS LLC·Filed 2017·Granted Jun 16, 2020·1 cites·16 claims
- 3655US9063242B2Acoustic transducers with dynamic frequency rangeSWETT DWIGHT W·Filed 2011·Granted Jun 23, 2015·1 cites·12 claims
- 3753US9784874B2Multi-beam phased array acoustic transducer operation for downhole applicationsBAKER HUGHES INC·Filed 2014·Granted Oct 10, 2017·1 cites·21 claims
- 3837US2009195408A1Methods and apparatus for high-speed telemetry while drillingBAKER HUGHES INC·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →