Patrice Ligneul
28Patents
8h-index
47Co-inventors
75Inventor score
Filing activity: Oct 15, 1992 → Jun 5, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5383369A | Device for measuring the velocity of a fluid | Physics | 69 | Expired |
| US5309946A | Flow rectifier | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5864067A | Fluidic oscillator and a method of measuring a volume-related quantity of fluid flowing through such a fluidic oscillator | Physics | 20 | Expired |
| US7258164B2 | Pumping system for oil wells | Physics | 17 | Expired |
| US9575189B2 | Segmented radiation detector and apparatus and method for using same | Physics | 16 | Active |
| US8538700B2 | Method of determining subterranean formation parameters | Physics | 13 | Active |
| US5969263A | Ultrasonic fluid counter for attenuating parasitic ultrasonic waves | Physics | 10 | Expired |
| US8680865B2 | Single well reservoir imaging apparatus and methods | Physics | 9 | Active |
| US9176251B2 | Asphaltene evaluation based on NMR measurements and temperature / pressure cycling | Physics | 8 | Active |
| US8589130B2 | Method of selecting additives for oil recovery | Physics | 8 | Active |
| US9188697B2 | Tracking non-uniform flooding fronts of gas injection in oil reservoirs | Emerging Cross-Sectional Technologies | 3 | Active |
| US9459370B2 | Method of determining formation parameter | Physics | 3 | Active |
| US7259564B2 | Method and device for determining the position of an interface in relation to a bore hole | Fixed Constructions | 3 | Expired |
| US11066925B2 | Method and apparatus for determining fluid flow characteristics | Physics | 2 | Active |
| US9423365B2 | T2-cutoff determination using magnetic susceptibility measurements | Physics | 2 | Active |
| US7148693B2 | Process and device for prospecting a porous geological formation | Physics | 2 | Expired |
| US8602128B2 | Analysis of drilling cuttings for permittivity | Physics | 2 | Active |
| US7150188B2 | Non-invasive measurement of fluid-pressure diffusivity using electro-osmosis | Physics | 2 | Expired |
| US9121959B2 | Predicting carbonate rock solid permittivity | Physics | 2 | Active |
| US11754452B2 | Resonating sensor for high-pressure and high-temperature environments | Electricity | 1 | Active |
| US12025512B2 | Resonating sensor for high-pressure and high-temperature environments | Electricity | 1 | Active |
| US9810613B2 | System and method for sensing displacement of subsea structures | Physics | 1 | Active |
| US10545080B2 | Determination of interfacial or surface tension | Physics | 1 | Active |
| US12287249B2 | Resonating sensor for high-pressure and high-temperature environments | Electricity | 0 | Active |
| US9366613B2 | Matrix permitivity determination | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.