Perry Lee McClanahan

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Willis, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure regulated slip ram on a coil tubing blowout preventer
- Patent number 6,843,463
- Issue date Jan 18, 2005
- Varco I/P/ Inc.
- David J. McWhorter
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Position Indicator for a Blowout Preventer
- Publication number 20080040070
- Publication date Feb 14, 2008
- Varco I/P, Inc.
- Perry Lee McClanahan
- E21 - EARTH DRILLING MINING