Inventor · disambiguated record
Shu-Kong Chang
Also filed as: CHANG SHU K · CHANG SHU-KONG · CHANG SHU-KONG STEVE
24 granted patents·1,647 citations·filing 1984–2008
97Inventor score
Top patents by PatentIndex Score
24 records- 0196US6373248B1Nuclear magnetic resonance logging with azimuthal resolutionSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Apr 16, 2002·72 cites·30 claims
- 0296US6109372ARotary steerable well drilling system utilizing hydraulic servo-loopSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted Aug 29, 2000·252 cites·25 claims
- 0395US5077697ADiscrete-frequency multipole sonic logging methods and apparatusSCHLUMBERGER TECHNOLOGY CORP·Filed 1990·Granted Dec 31, 1991·129 cites·87 claims
- 0494US6366089B1Nuclear magnetic resonance logging with azimuthal resolutionSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Apr 2, 2002·56 cites·12 claims
- 0593US4698792AMethod and apparatus for acoustic dipole shear wave well loggingSCHLUMBERGER TECHNOLOGY CORP·Filed 1984·Granted Oct 6, 1987·62 cites·10 claims
- 0692US5852587AMethod of and apparatus for sonic logging while drilling a borehole traversing an earth formationSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted Dec 22, 1998·117 cites·67 claims
- 0791US6255817B1Nuclear magnetic resonance logging with azimuthal resolutionSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Jul 3, 2001·66 cites·40 claims
- 0891US5594706ADownhole processing of sonic waveform informationSCHLUMBERGER TECHNOLOGY CORP·Filed 1993·Granted Jan 14, 1997·98 cites·34 claims
- 0990US6509738B1Electromagnetic induction well logging instrument having azimuthally sensitive responseSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Jan 21, 2003·73 cites·42 claims
- 1090US4951267AMethod and apparatus for multipole acoustic loggingSCHLUMBERGER TECHNOLOGY CORP·Filed 1986·Granted Aug 21, 1990·84 cites·22 claims
- 1189US5796677AMethod of sonic logging while drilling a borehole traversing an earth formationSCHLUMBERGER TECHNOLOGY CORP·Filed 1994·Granted Aug 18, 1998·85 cites·14 claims
- 1286US4703460AMethod and apparatus for acoustic dipole direct shear wave well loggingSCHLUMBERGER TECHNOLOGY CORP·Filed 1984·Granted Oct 27, 1987·50 cites·14 claims
- 1385US5753812ATransducer for sonic logging-while-drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 1995·Granted May 19, 1998·112 cites·28 claims
- 1485US5331604AMethods and apparatus for discrete-frequency tube-wave logging of boreholesSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted Jul 19, 1994·67 cites·35 claims
- 1584US5977768ANuclear magnetic resonance logging with azimuthal resolutionSCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted Nov 2, 1999·83 cites·51 claims
- 1683US7643374B2Slowness-frequency projection display and animationSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Jan 5, 2010·19 cites·23 claims
- 1779US5265067AMethods and apparatus for simultaneous compressional, shear and Stoneley loggingSCHLUMBERGER TECHNOLOGY CORP·Filed 1991·Granted Nov 23, 1993·55 cites·44 claims
- 1875US4850450ALogging tool housing with acoustic delaySCHLUMBERGER TECHNOLOGY CORP·Filed 1987·Granted Jul 25, 1989·41 cites·20 claims
- 1970US5923167APulsed nuclear magnetism tool for formation evaluation while drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted Jul 13, 1999·48 cites·5 claims
- 2067US7554882B2Methods and systems for calibrating acoustic receiversSCHLUMBEGER TECHNOLOGY CORP·Filed 2006·Granted Jun 30, 2009·8 cites·17 claims
- 2165US7603238B2Analysis of time-series data using singularitiesSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Oct 13, 2009·8 cites·20 claims
- 2262US5197038AMethod and sonic tool apparatus for investigating properties of earth formations transversed by a boreholeSCHLUMBERGER TECHNOLOGY CORP·Filed 1991·Granted Mar 23, 1993·32 cites·30 claims
- 2357US8238194B2Methods and systems for compressing sonic log dataWU PETER T·Filed 2006·Granted Aug 7, 2012·4 cites·32 claims
- 2456US5309404AReceiver apparatus for use in logging while drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 1991·Granted May 3, 1994·26 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →