Pierre Grolet

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Orgerus, FR

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Patents Grantslast 30 patents

Information Patent Grant
Device for generating sound pulses inside a well, by percussion
- Patent number 4,648,478
- Issue date Mar 10, 1987
- Institut Francais du Petrol
- Pascal Dedole
- G01 - MEASURING TESTING
Information Patent Grant
Device for generating acoustic shear waves in the earth
- Patent number 4,564,083
- Issue date Jan 14, 1986
- Institut Francais du Petrole
- Pierre-Claude Layotte
- G01 - MEASURING TESTING
Information Patent Grant
Device for measuring the stresses applied in use to the downhole as...
- Patent number 4,294,318
- Issue date Oct 13, 1981
- Institut Francais du Petrole
- Robert Desbrandes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for storing a flexible elongated member, such as a flexib...
- Patent number 3,941,146
- Issue date Mar 2, 1976
- Institut Francaise du Petrole, des Carburants et Lubrifiants
- Michel Chatard
- E21 - EARTH DRILLING MINING