Inventor · disambiguated record
Kenneth E. Stephenson
Also filed as: STEPHENSON KENNETH · STEPHENSON KENNETH E · STEPHENSON KENNETH EDWARD
52 granted patents·4 pending applications·1,492 citations·filing 1985–2018
99Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP46STEPHENSON KENNETH E2FITZGERALD JOHN B1KORKIN ROMAN1RAGHURAMAN BHAVANI1
Top patents by PatentIndex Score
56 records- 0197US6755086B2Flow meter for multi-phase mixturesSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted Jun 29, 2004·157 cites·36 claims
- 0296US7960687B1Sourceless downhole X-ray toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2010·Granted Jun 14, 2011·46 cites·26 claims
- 0396US6590647B2Physical property determination using surface enhanced raman emissionsSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted Jul 8, 2003·84 cites·21 claims
- 0493US8785841B1Scintillation detector package having radioactive window thereinSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jul 22, 2014·12 cites·21 claims
- 0593US6253847B1Downhole power generationSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted Jul 3, 2001·118 cites·15 claims
- 0692US9599729B2Gamma-ray detectors for downhole applicationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Granted Mar 21, 2017·8 cites·8 claims
- 0792US6075611AMethods and apparatus utilizing a derivative of a fluorescene signal for measuring the characteristics of a multiphase fluid flow in a hydrocarbon wellSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Jun 13, 2000·103 cites·41 claims
- 0891US8742328B2Logging-while-drilling tool incorporating electronic radiation generator and method for using sameSIMON MATTHIEU·Filed 2010·Granted Jun 3, 2014·13 cites·8 claims
- 0991US6776054B1Flow meter for multi-phase mixturesSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Aug 17, 2004·57 cites·60 claims
- 1091US5539225AAccelerator-based methods and apparatus for measurement-while-drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 1994·Granted Jul 23, 1996·86 cites·50 claims
- 1190US6612171B1Gravity measuring apparatusSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Sep 2, 2003·73 cites·10 claims
- 1289US6016191AApparatus and tool using tracers and singles point optical probes for measuring characteristics of fluid flow in a hydrocarbon well and methods of processing resulting signalsSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Jan 18, 2000·99 cites·20 claims
- 1388US6988547B2Method and system of fluid analysis and control in hydrocarbon wellSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Jan 24, 2006·29 cites·12 claims
- 1488US5689540AX-ray water fraction meterSCHLUMBERGER TECHNOLOGY CORP·Filed 1996·Granted Nov 18, 1997·83 cites·11 claims
- 1587US10162079B2Neutron-gamma density through normalized inelastic ratioSCHLUMBERGER TECHNOLOGY CORP·Filed 2017·Granted Dec 25, 2018·3 cites·20 claims
- 1686US6854341B2Flow characteristic measuring apparatus and methodSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Feb 15, 2005·35 cites·18 claims
- 1786US5680431AX-ray generatorSCHLUMBERGER TECHNOLOGY CORP·Filed 1996·Granted Oct 21, 1997·75 cites·21 claims
- 1885US9897719B2Optimization of neutron-gamma tools for inelastic-gamma ray loggingSTEPHENSON KENNETH E·Filed 2010·Granted Feb 20, 2018·9 cites·25 claims
- 1981US6216532B1Gas flow rate measurementSCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted Apr 17, 2001·49 cites·8 claims
- 2080US7366615B2Methods and apparatus using both nuclear capture and inelastic spectroscopy in deriving elemental concentrationsSCHLUMBER TECHNOLOGY CORP·Filed 2006·Granted Apr 29, 2008·18 cites·32 claims
- 2179US9568638B2Identification of neutron capture from a pulsed neutron logging toolFITZGERALD JOHN B·Filed 2011·Granted Feb 14, 2017·6 cites·19 claims
- 2277US7791017B2Method to simultaneously determine pore hydrocarbon density and water saturation from pulsed neutron measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Sep 7, 2010·13 cites·7 claims
- 2374US6490916B1Method and system of fluid analysis and control in a hydrocarbon wellSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted Dec 10, 2002·63 cites·30 claims
- 2469US8822912B2Ion source having increased electron path lengthSCHLUMBERGER TECHNOLOGY CORP·Filed 2012·Granted Sep 2, 2014·2 cites·20 claims
- 2569US5191517AElectrostatic particle accelerator having linear axial and radial fieldsSCHLUMBERGER TECHNOLOGY CORP·Filed 1990·Granted Mar 2, 1993·31 cites·7 claims
- 2668US8901483B2Gamma-ray detectors for downhole applicationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Dec 2, 2014·1 cites·28 claims
- 2766USRE36012EAccelerator-based methods and apparatus for measurement-while-drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 1996·Granted Dec 29, 1998·39 cites·50 claims
- 2864US8853617B1Photomultiplier for well-logging toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Oct 7, 2014·1 cites·23 claims
- 2964US7674624B2Method for real-time determination of volume fractions of a production fluid in a hydrocarbon reservoirSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Mar 9, 2010·4 cites·27 claims
- 3064US5523939ABorehole logging tool including a particle acceleratorSCHLUMBERGER TECHNOLOGY CORP·Filed 1995·Granted Jun 4, 1996·40 cites·13 claims
- 3164US5325284AElectrostatic particle accelerator having linear axial and radial fieldsSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted Jun 28, 1994·24 cites·13 claims
- 3263US9357629B2Neutron generatorSTEPHENSON KENNETH E·Filed 2009·Granted May 31, 2016·3 cites·34 claims
- 3362US10845502B2Optimization of neutron-gamma tools for inelastic gamma-ray loggingSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Nov 24, 2020·0 cites·18 claims
- 3462US9671519B2Neutron-gamma density through normalized inelastic ratioTKABLADZE AVTANDIL·Filed 2011·Granted Jun 6, 2017·2 cites·7 claims
- 3562US5543617AMethod of measuring flow velocities using tracer techniquesSCHLUMBERGER TECHNOLOGY CORP·Filed 1994·Granted Aug 6, 1996·36 cites·16 claims
- 3661US10145979B2Gamma-ray detectors for downhole applicationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2017·Granted Dec 4, 2018·0 cites·20 claims
- 3761US7231305B2Flow rate determinationSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Jun 12, 2007·10 cites·25 claims
- 3860US8912484B2Photomultipler-based neutron detectorKORKIN ROMAN·Filed 2012·Granted Dec 16, 2014·2 cites·7 claims
- 3959US4710675ASolid dynode structure for photomultiplierSANGAMO WESTON·Filed 1985·Granted Dec 1, 1987·10 cites·10 claims
- 4058US9310491B2Scintillator with tapered geometry for radiation detectorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2012·Granted Apr 12, 2016·1 cites·18 claims
- 4154US9394781B2Logging-while-drilling tool incorporating electronic radiation generator and method for using sameSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Granted Jul 19, 2016·0 cites·9 claims
- 4254US5532482AMethod and apparatus for well logging using an accelerator neutron sourceSCHLUMBERGER TECHNOLOGY CORP·Filed 1995·Granted Jul 2, 1996·27 cites·34 claims
- 4352US9395464B2Scintillation detector package having radioactive reflective material thereinSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jul 19, 2016·0 cites·20 claims
- 4452US2016306070A1Logging-while-drilling tool incorporating electronic radiation generator and method of using sameSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Application pending·0 cites
- 4550US5515259AInductively charged coaxial capacitor acceleratorSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted May 7, 1996·16 cites·19 claims
- 4649US9659740B2Radiation generator adjusting beam focusing based upon a diagnostic electrodeSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Granted May 23, 2017·0 cites·19 claims
- 4747US9053893B2Radiation generator having bi-polar electrodesSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jun 9, 2015·0 cites·22 claims
- 4846US2008111064A1Downhole measurement of substances in earth formationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Application pending·0 cites
- 4945US9715022B2Scintillation detector package having radioactive support apparatusSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jul 25, 2017·0 cites·26 claims
- 5045US7728306B2Neutron logging tool having source and target with deuterium-tritium gas admixtureSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Jun 1, 2010·0 cites·21 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →