US Patent 7654333 Downhole safety valve
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Patent Citations Received
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Patent abstract
The present invention generally provides a method and apparatus for selectively sealing a bore. The tubular valve generally includes a closing member for seating in and closing the bore, and a pressure-actuated, retention member having first and second opposed piston surfaces opening and closing the valve. The tubular valve prevents sudden loss of pressure in the tubular and is controllable from the surface.
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Patent Inventor Names
Roddie R. Smith0
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US Patent 07654333 Downhole safety valve US Patent 7654333 Downhole safety valve
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Patent Number
07654333
Patent Number
7654333
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Official Website
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US Patent 07654333 Downhole safety valve
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Is a
Patent jurisdiction
Patent number
07654333
Date of patent
February 2, 2010
Patent application number
11384720
Date Filed
March 20, 2006
Patent primary examiner
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