Frank F. Espinosa

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Cambridge, GB

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Patents Grantslast 30 patents

Information Patent Grant
Actuators, actuatable joints, and methods of directional drilling
- Patent number 8,235,146
- Issue date Aug 7, 2012
- Schlumberger Technology Corporation
- Kjell Haugvaldstad
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
ACTUATORS, ACTUATABLE JOINTS, AND METHODS OF DIRECTIONAL DRILLING
- Publication number 20110139512
- Publication date Jun 16, 2011
- Kjell Haugvaldstad
- E21 - EARTH DRILLING MINING