Inventor · disambiguated record
Harold Pfutzner
Also filed as: PFUTZNER HAROLD · PFUTZNER HAROLD G
19 granted patents·249 citations·filing 1998–2024
94Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP13PFUTZNER HAROLD2LEGENDRE FABIENNE1PFUTZNER HAROLD G1PRIEZZHEV IVAN1
Top patents by PatentIndex Score
19 records- 0191US10208582B2Formation water salinity from borehole measurementsSAUDI ARABIAN OIL CO·Filed 2016·Granted Feb 19, 2019·13 cites·10 claims
- 0290US10247849B2Method for measuring formation water salinity from within a boreholePFUTZNER HAROLD·Filed 2012·Granted Apr 2, 2019·14 cites·17 claims
- 0389US6097786AMethod and apparatus for measuring multiphase flowsSCHLUMBERGER TECHNOLOGY CORP·Filed 1998·Granted Aug 1, 2000·96 cites·51 claims
- 0488US11988088B2Downhole flowmeterSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted May 21, 2024·1 cites·9 claims
- 0588US7978804B2Low power neutron generatorsSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Granted Jul 12, 2011·26 cites·25 claims
- 0686US12371990B2Downhole flowmeterSCHLUMBERGER TECHNOLOGY CORP·Filed 2024·Granted Jul 29, 2025·0 cites·14 claims
- 0783US9002648B2Method and apparatus for precise positioning of a borehole measurement instrumentPFUTZNER HAROLD G·Filed 2010·Granted Apr 7, 2015·9 cites·22 claims
- 0881US11520070B2Effective medium theory of acidized carbonate matrix resistivity employed to calculate the apparent geometric parameters of the wormholesSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Dec 6, 2022·2 cites·18 claims
- 0976US12378882B2Method for performing Raman spectroscopy within a logging while drilling instrumentSCHLUMBERGER TECHNOLOGY CORP·Filed 2022·Granted Aug 5, 2025·0 cites·17 claims
- 1076US7364007B2Integrated acoustic transducer assemblySCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted Apr 29, 2008·45 cites·63 claims
- 1170US8866068B2Ion source with cathode having an array of nano-sized projectionsSCHLUMBERGER TECHNOLOGY CORP·Filed 2012·Granted Oct 21, 2014·2 cites·26 claims
- 1268US11530611B2Method for performing Raman spectroscopy within a logging while drilling instrumentSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Dec 20, 2022·1 cites·15 claims
- 1367US11680481B2Downhole flowmeterSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Jun 20, 2023·0 cites·20 claims
- 1464US7367392B2Wellbore apparatus with sliding shieldsSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted May 6, 2008·27 cites·43 claims
- 1560US8527205B2Gravity interpretation workflow in injection wellsLEGENDRE FABIENNE·Filed 2009·Granted Sep 3, 2013·9 cites·20 claims
- 1659US11041974B2X-ray imaging device for cased wells and open boreholesSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Jun 22, 2021·0 cites·20 claims
- 1759US8990020B2Method and apparatus for measuring the vertical separation of two stations in a boreholePFUTZNER HAROLD·Filed 2010·Granted Mar 24, 2015·2 cites·13 claims
- 1856US8700372B2Method for 3-D gravity forward modeling and inversion in the wavenumber domainPRIEZZHEV IVAN·Filed 2011·Granted Apr 15, 2014·2 cites·35 claims
- 1952US11163089B2Neutron imaging devices for cased wells and open boreholesSCHLUMBERGER TECHNOLOGY CORP·Filed 2019·Granted Nov 2, 2021·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →