Claude Fierfort

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Palaiseau, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for detecting acoustic vibrations in a borehole
- Patent number 4,953,398
- Issue date Sep 4, 1990
- Schlumberger Technology Corp.
- Jean-Pierre Masson
- G01 - MEASURING TESTING
Information Patent Grant
Device for measuring the flow of fluid in a well
- Patent number 4,442,711
- Issue date Apr 17, 1984
- Schlumberger Technology Corporation
- Jean-Pierre Hulin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Seal and pressure balance system for an electrode-type logging sonde
- Patent number 4,278,942
- Issue date Jul 14, 1981
- Schlumberger Technology Corporation
- Jean-Loup Bonnet
- G01 - MEASURING TESTING