Inventor
LIGNEUL PATRICE
US28 patents
⚠️ This page may combine multiple inventors who share the name “LIGNEUL PATRICE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
14 patentsUS7258164B2Aug 21, 2007
Pumping system for oil wells
SCHLUMBERGER TECHNOLOGY CORP23 citations92
US9176251B2Nov 3, 2015
Asphaltene evaluation based on NMR measurements and temperature / pressure cycling
SCHLUMBERGER TECHNOLOGY CORP9 citations79
US7259564B2Aug 21, 2007
Method and device for determining the position of an interface in relation to a bore hole
SCHLUMBERGER TECHNOLOGY CORP7 citations72
US12025512B2Jul 2, 2024
Resonating sensor for high-pressure and high-temperature environments
SCHLUMBERGER TECHNOLOGY CORP2 citations68
US11754452B2Sep 12, 2023
Resonating sensor for high-pressure and high-temperature environments
SCHLUMBERGER TECHNOLOGY CORP2 citations68
US11066925B2Jul 20, 2021
Method and apparatus for determining fluid flow characteristics
SCHLUMBERGER TECHNOLOGY CORP3 citations68
US10545080B2Jan 28, 2020
Determination of interfacial or surface tension
SCHLUMBERGER TECHNOLOGY CORP1 citations62
US12146777B2Nov 19, 2024
Fluid component determination using thermal properties
SCHLUMBERGER TECHNOLOGY CORP0 citations61
US11692859B2Jul 4, 2023
Fluid component determination using thermal properties
SCHLUMBERGER TECHNOLOGY CORP0 citations61
US7148693B2Dec 12, 2006
Process and device for prospecting a porous geological formation
SCHLUMBERGER TECHNOLOGY CORP4 citations61
US12287249B2Apr 29, 2025
Resonating sensor for high-pressure and high-temperature environments
SCHLUMBERGER TECHNOLOGY CORP0 citations57
US7150188B2Dec 19, 2006
Non-invasive measurement of fluid-pressure diffusivity using electro-osmosis
SCHLUMBERGER TECHNOLOGY CORP3 citations56
US9810613B2Nov 7, 2017
System and method for sensing displacement of subsea structures
SCHLUMBERGER TECHNOLOGY CORP1 citations51
US11377949B2Jul 5, 2022
Multiphase flow metering
SCHLUMBERGER TECHNOLOGY CORP0 citations50
SCHLUMBERGER IND SA
4 patentsUS5864067AJan 26, 1999
Fluidic oscillator and a method of measuring a volume-related quantity of fluid flowing through such a fluidic oscillator
SCHLUMBERGER IND SA36 citations92
US5309946AMay 10, 1994
Flow rectifier
SCHLUMBERGER IND SA43 citations92
US5383369AJan 24, 1995
Device for measuring the velocity of a fluid
SCHLUMBERGER IND SA90 citations91
US5969263AOct 19, 1999
Ultrasonic fluid counter for attenuating parasitic ultrasonic waves
SCHLUMBERGER IND SA17 citations84