Edouard Marienbach

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for subsurface formation evaluation
- Patent number 4,879,463
- Issue date Nov 7, 1989
- Schlumberger Technology Corporation
- Peter D. Wraight
- E21 - EARTH DRILLING MINING
Information Patent Grant
Methods and apparatus for safely measuring downhole conditions and...
- Patent number 4,814,609
- Issue date Mar 21, 1989
- Schlumberger Technology Corporation
- Peter D. Wraight
- E21 - EARTH DRILLING MINING