Charles Mark Tompkins

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Tulsa, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Subsurface safety valve and method of actuation
- Patent number 8,393,386
- Issue date Mar 12, 2013
- Baker Hughes Incorporated
- Gary B. Lake
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Electro-hydraulic surface controlled subsurface safety valve actuator
- Patent number 6,269,874
- Issue date Aug 7, 2001
- Baker Hughes Incorporated
- Michael S. Rawson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electrically driven actuator with failsafe feature
- Patent number 5,984,260
- Issue date Nov 16, 1999
- Baker Hughes Incorporated
- Michael S. Rawson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SUBSURFACE SAFETY VALVE AND METHOD OF ACTUATION
- Publication number 20110120727
- Publication date May 26, 2011
- BAKER HUGHES INCORPORATED
- Gary B. Lake
- E21 - EARTH DRILLING MINING
Information Patent Application
METHODS AND APPARATUS FOR MONITORING COMPONENTS OF DOWNHOLE TOOLS
- Publication number 20080257548
- Publication date Oct 23, 2008
- BAKER HUGHES INCORPORATED
- Brian S. Shaw
- E21 - EARTH DRILLING MINING
Information Patent Application
Methods and apparatus for monitoring components of downhole tools
- Publication number 20060157240
- Publication date Jul 20, 2006
- Brian S. Shaw
- E21 - EARTH DRILLING MINING