Philippe Essel

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Pau, FR

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Patents Grantslast 30 patents

Information Patent Grant
Device for uncoupling a drill string, drilling system comprising su...
- Patent number 9,206,653
- Issue date Dec 8, 2015
- Philippe Essel
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DEVICE FOR UNCOUPLING A DRILL STRING, DRILLING SYSTEM COMPRISING SU...
- Publication number 20130037326
- Publication date Feb 14, 2013
- Philippe Essel
- E21 - EARTH DRILLING MINING