Inventor · disambiguated record
Douglas W. Grant
Also filed as: GRANT DOUGLAS · GRANT DOUGLAS W
15 granted patents·205 citations·filing 2003–2016
93Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP8DUSSAN V ELIZABETH B1FREEDMAN ROBERT1HARRIGAN EDWARD1LAWRENCE JIMMY1
Top patents by PatentIndex Score
15 records- 0194US7683613B2High pressure/high temperature magnetic resonance toolSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Mar 23, 2010·30 cites·21 claims
- 0290US7278480B2Apparatus and method for sensing downhole parametersSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Oct 9, 2007·41 cites·26 claims
- 0386US8910514B2Systems and methods of determining fluid propertiesSULLIVAN MATTHEW T·Filed 2012·Granted Dec 16, 2014·17 cites·23 claims
- 0482US8586913B2Fluidic density measurements based on beta particles detectionZHOU ZILU·Filed 2011·Granted Nov 19, 2013·5 cites·43 claims
- 0582US7198105B2Apparatus and method for controlling the pressure of fluid within a sample chamberSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Apr 3, 2007·20 cites·8 claims
- 0681US8708049B2Downhole mixing device for mixing a first fluid with a second fluidLAWRENCE JIMMY·Filed 2011·Granted Apr 29, 2014·9 cites·48 claims
- 0781US7140436B2Apparatus and method for controlling the pressure of fluid within a sample chamberSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Nov 28, 2006·56 cites·31 claims
- 0877US9459330B2System 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
- 0971US10487652B2Downhole sampling tool with check valve pistonSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Nov 26, 2019·2 cites·21 claims
- 1067US8807228B2Friction reduction mechanism for a downhole release assemblyMARTIN BRANDON·Filed 2012·Granted Aug 19, 2014·4 cites·13 claims
- 1166US10669847B2Double Rod Lock SystemSCHLUMBERGER TECHNOLOGY CORP·Filed 2016·Granted Jun 2, 2020·2 cites·20 claims
- 1264US8561698B2Downhole fluid injectionHARRIGAN EDWARD·Filed 2010·Granted Oct 22, 2013·3 cites·16 claims
- 1364US7624794B2Non-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
- 1449US9097106B2Apparatus, method and system for measuring formation pressure and mobilityDUSSAN V ELIZABETH B·Filed 2012·Granted Aug 4, 2015·1 cites·30 claims
- 1549US8471560B2Measurements in non-invaded formationsFREEDMAN ROBERT·Filed 2009·Granted Jun 25, 2013·2 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →