Christopher John Smith

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Provost, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for re-entering an abandoned well
- Patent number 7,600,571
- Issue date Oct 13, 2009
- Christopher John Smith
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for re-entering an abandoned well
- Publication number 20080289817
- Publication date Nov 27, 2008
- Christopher John Smith
- E21 - EARTH DRILLING MINING