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Allen P. Carney
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Tulsa, OK, US
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Patents Grants
last 30 patents
Information
Patent Grant
Switching apparatus between independent control systems for a subsu...
Patent number
7,762,335
Issue date
Jul 27, 2010
Baker Hughes Incorporated
David Z. Anderson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Lock open and control system access apparatus for a downhole safety...
Patent number
7,717,185
Issue date
May 18, 2010
Baker Hughes Incorporatd
David Z. Anderson
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Lock Open and Control System Access Apparatus for a Downhole Safety...
Publication number
20100006296
Publication date
Jan 14, 2010
David Z. Anderson
E21 - EARTH DRILLING MINING
Information
Patent Application
Multiple Spring Subsurface Safety Valve
Publication number
20090236099
Publication date
Sep 24, 2009
John E. Burris
E21 - EARTH DRILLING MINING
Information
Patent Application
Switching Apparatus Between Independent Control Systems for a Subsu...
Publication number
20090050327
Publication date
Feb 26, 2009
David Z. Anderson
E21 - EARTH DRILLING MINING