Inventor · disambiguated record
Sergei Knizhnik
Also filed as: KNIZHNIK SERGEI
6 granted patents·4 pending applications·41 citations·filing 2001–2024
75Inventor score
Files withNABORS DRILLING TECH USA INC4HALLIBURTON ENERGY SERV INC2APS TECH INC1HALLIBURTON ENERGY SERVICES INC1MORYS MARIAN1
Top patents by PatentIndex Score
10 records- 0182US6940378B2Apparatus and method for magnetic resonance measurements in an interior volumeHALLIBURTON ENERGY SERV INC·Filed 2001·Granted Sep 6, 2005·33 cites·37 claims
- 0267US6956372B2System and method for NMR logging with helical polarizationHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Oct 18, 2005·8 cites·29 claims
- 0363US2020049748A1High Frequency Or Multifrequency Resistivity ToolHALLIBURTON ENERGY SERVICES INC·Filed 2019·Application pending·0 cites
- 0462US11940591B2Gamma ray logging tool with detector windowNABORS DRILLING TECH USA INC·Filed 2021·Granted Mar 26, 2024·0 cites·20 claims
- 0555US12286853B2Instrumented subNABORS DRILLING TECH USA INC·Filed 2023·Granted Apr 29, 2025·0 cites·20 claims
- 0647US11156735B2Acoustic logging toolAPS TECH INC·Filed 2018·Granted Oct 26, 2021·0 cites·30 claims
- 0746US2024200437A1Instrumented subNABORS DRILLING TECH USA INC·Filed 2023·Application pending·0 cites
- 0844US2024280015A1Sensor assembly for pulser communication at the surfaceNABORS DRILLING TECH USA INC·Filed 2024·Application pending·0 cites
- 0939US2010148787A1High Frequency or Multifrequency Resistivity ToolMORYS MARIAN·Filed 2006·Application pending·0 cites
- 1036US10684387B2Logging tool having side-looking nuclear magnetic resonance sensorWEATHERFORD TECH HOLDINGS INC·Filed 2016·Granted Jun 16, 2020·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →