Mike Foster

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Westhill, GB

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Patents Grantslast 30 patents

Information Patent Grant
Downhole safety valve having flapper and protected opening procedure
- Patent number 8,424,611
- Issue date Apr 23, 2013
- Weatherford/Lamb, Inc.
- Roddie R. Smith
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Downhole Safety Valve Having Flapper and Protected Opening Procedure
- Publication number 20110048742
- Publication date Mar 3, 2011
- Weatherford/Lamb Inc.
- Roddie R. Smith
- E21 - EARTH DRILLING MINING