Jean-Jacques Boy

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Besancon, FR

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric transducer, notably for pressure measurement
- Patent number 4,562,375
- Issue date Dec 31, 1985
- Schlumberger Technology Corporation
- Raymond J. Besson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Piezoelectric pressure and/or temperature transducer
- Patent number 4,547,691
- Issue date Oct 15, 1985
- Schlumberger Technology Corporation
- Michel Valdois
- G01 - MEASURING TESTING