Inventor · disambiguated record
Robert Freedman
Also filed as: FREEDMAN ROBERT · FREEDMAN ROBERT P · SMALL SAMUEL N
45 granted patents·4 pending applications·1,962 citations·filing 1976–2016
99Inventor score
Top patents by PatentIndex Score
49 records- 0196US5291137AProcessing method and apparatus for processing spin echo in-phase and quadrature amplitudes from a pulsed nuclear magnetism tool and producing new output data to be recorded on an output recordSCHLUMBERGER TECHNOLOGY CORP·Filed 1992·Granted Mar 1, 1994·149 cites·30 claims
- 0295US5486762AApparatus including multi-wait time pulsed NMR logging method for determining accurate T2-distributions and accurate T1/T2 ratios and generating a more accurate output record using the updated T2-distributions and T1/T2 ratiosSCHLUMBERGER TECHNOLOGY CORP·Filed 1994·Granted Jan 23, 1996·213 cites·30 claims
- 0395US4319220AAlarm system for monitoring pressurized vehicular tiresPAPPAS DENNIS G·Filed 1978·Granted Mar 9, 1982·151 cites·11 claims
- 0494US7683613B2High pressure/high temperature magnetic resonance toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Mar 23, 2010·30 cites·21 claims
- 0594US5381092AMethod and apparatus for compressing data produced from a well tool in a wellbore prior to transmitting the compressed data uphole to a surface apparatusSCHLUMBERGER TECHNOLOGY CORP·Filed 1993·Granted Jan 10, 1995·127 cites·51 claims
- 0693US9759832B1Apparatus and methods for fast NMR well logging without instrument speed effectsSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Sep 12, 2017·8 cites·19 claims
- 0793US7309983B2Method for determining characteristics of earth formationsSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Dec 18, 2007·42 cites·28 claims
- 0893US6229308B1Formation evaluation using magnetic resonance logging measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted May 8, 2001·146 cites·82 claims
- 0992US8471559B2Downhole micro magnetic resonance analyzerTAHERIAN REZA·Filed 2007·Granted Jun 25, 2013·36 cites·19 claims
- 1092US6765380B2Determining wettability of an oil reservoir using borehole NMR measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Jul 20, 2004·54 cites·14 claims
- 1192US5210691AMethod and apparatus for producing a more accurate resistivity log from data recorded by an induction sonde in a boreholeSCHLUMBERGER TECHNOLOGY CORP·Filed 1991·Granted May 11, 1993·101 cites·7 claims
- 1291US6859032B2Method for determining molecular properties of hydrocarbon mixtures from NMR dataSCHLUMBERGER TECHNOLOGY CORP·Filed 2001·Granted Feb 22, 2005·48 cites·31 claims
- 1389US4220907AElectromagnetic power generatorDENNIS G PAPPAS·Filed 1978·Granted Sep 2, 1980·55 cites·4 claims
- 1487US7301339B1Estimating the concentration of a substance in a sample using NMRSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Nov 27, 2007·13 cites·25 claims
- 1585US7053611B2Method and apparatus for using pulsed field gradient NMR measurements to determine fluid properties in a fluid sampling well logging toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted May 30, 2006·55 cites·17 claims
- 1685US5451873AMethod and apparatus for determining the in situ larmor frequency of a wellbore NMR tool to compensate for accumulation of magnetic material on the magnet housing of the toolSCHLUMBERGER TECHNOLOGY CORP·Filed 1993·Granted Sep 19, 1995·73 cites·22 claims
- 1785US4278941AHigh frequency induction log for determining resistivity and dielectric constant of the earthSHELL OIL CO·Filed 1978·Granted Jul 14, 1981·41 cites·6 claims
- 1884US7196517B2Combining NMR and density measurements for determining properties of reservoir fluidSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Mar 27, 2007·17 cites·2 claims
- 1984US7091719B2Method for determining properties of formation fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Aug 15, 2006·45 cites·36 claims
- 2084US6032101AMethods for evaluating formations using NMR and other logsSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Feb 29, 2000·88 cites·47 claims
- 2181US4916616ASelf-consistent log interpretation methodBP EXPLORATION INC·Filed 1986·Granted Apr 10, 1990·70 cites·23 claims
- 2280US9696453B2Predicting mineralogy properties from elemental compositionsSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Jul 4, 2017·5 cites·12 claims
- 2377US9459330B2System and method for obtaining nuclear magnetic resonance measurements on reservoir fluids for prediction of fluid propertiesSCHLUMBERGER TECHNOLOGY CORP·Filed 2013·Granted Oct 4, 2016·5 cites·10 claims
- 2477US8686723B2Determining the larmor frequency for NMR toolsANAND VIVEK·Filed 2010·Granted Apr 1, 2014·4 cites·30 claims
- 2577US8400147B2Predicting properties of live oils from NMR measurementsANAND VIVEK·Filed 2010·Granted Mar 19, 2013·5 cites·20 claims
- 2677US8076933B2Method for determining wettability of an oil reservoirFREEDMAN ROBERT·Filed 2009·Granted Dec 13, 2011·9 cites·20 claims
- 2775US7253618B1Method for determining more accurate diffusion coefficient distributions of reservoir fluids using Bi-polar pulsed field gradientsSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Aug 7, 2007·12 cites·23 claims
- 2874US7482811B2Magneto-optical method and apparatus for determining properties of reservoir fluidsSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Jan 27, 2009·11 cites·35 claims
- 2971US6952096B2Method and apparatus for determining speed and properties of flowing fluids using NMR measurementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Oct 4, 2005·37 cites·28 claims
- 3071US6841996B2Nuclear magnetic resonance apparatus and methods for analyzing fluids extracted from earth formationSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Jan 11, 2005·31 cites·28 claims
- 3170US6459992B1Method and apparatus for determining logging tool displacementsSCHLUMBERGER TECHNOLOGY CORP·Filed 2000·Granted Oct 1, 2002·38 cites·11 claims
- 3269US6703832B2Method for detecting hydrocarbons by comparing NMR response at different depths of investigationSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Mar 9, 2004·26 cites·26 claims
- 3368US7075297B2Combining NMR, density, and dielectric measurements for determining downhole reservoir fluid volumesSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Jul 11, 2006·21 cites·26 claims
- 3464US7624794B2Non-conductive and non-magnetic flowline for electromagnetic measurements on reservoir fluids at high pressuresSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Dec 1, 2009·8 cites·33 claims
- 3564US6838875B2Processing NMR data in the presence of coherent ringingSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Jan 4, 2005·22 cites·34 claims
- 3663US5168234AMethod and apparatus for measuring azimuthal as well as longitudinal waves in a formation traversed by a boreholeSCHLUMBERGER TECHNOLOGY CORP·Filed 1990·Granted Dec 1, 1992·32 cites·24 claims
- 3758US4329647AMethod for determining distance and direction from an open well to a cased well using resistivity and directional survey dataPETROLEUM PHYSICS CORP·Filed 1981·Granted May 11, 1982·27 cites·18 claims
- 3857US6242893B1Lithium-ion and lithium polymer battery rechargingBREN TRONICS INC·Filed 1999·Granted Jun 5, 2001·35 cites·10 claims
- 3957US6147489AMethod and apparatus for measuring total nuclear magnetic resonance porositySCHLUMBERGER TECHNOLOGY CORP·Filed 1997·Granted Nov 14, 2000·32 cites·8 claims
- 4055US7076370B1Method for determining borehole corrections for well-logging toolsSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Jul 11, 2006·16 cites·27 claims
- 4152US10024997B2Determining the Larmor frequency for NMR toolsSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Granted Jul 17, 2018·0 cites·19 claims
- 4252US2010313633A1Estimating effective permeabilitiesSCHLUMBERGER TECHNOLOGY CORP·Filed 2009·Application pending·0 cites
- 4349US8471560B2Measurements in non-invaded formationsFREEDMAN ROBERT·Filed 2009·Granted Jun 25, 2013·2 cites·24 claims
- 4447US4360778AHigh frequency induction log for locating formation interfacesSHELL OIL CO·Filed 1980·Granted Nov 23, 1982·12 cites·2 claims
- 4546US11187825B2Method for formation evaluation of organic shale reservoirs using well logging dataSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Nov 30, 2021·0 cites·20 claims
- 4644US4126772ASwitch for detecting tire pressurePAPPAS DENNIS G·Filed 1976·Granted Nov 21, 1978·10 cites·9 claims
- 4741US2013204534A1Method Of Estimating A Subterranean Formation PropertyCORP SCHLUMBERGER TECHNOLOGY·Filed 2013·Application pending·0 cites
- 4838US2014005945A1Method For Estimation Of Borehole And Formation Properties From Nuclear Logging MeasurementsANAND VIVEK·Filed 2011·Application pending·0 cites
- 4938US2013319659A1Open-Hole Logging Instrument And Method For Making Ultra-Deep Magnetic And Resistivity MeasurementsFREEDMAN ROBERT·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →