Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven B. Lonnes0
William A. Sorem0
Date of Patent
April 14, 2009
0Patent Application Number
106282140
Date Filed
July 28, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A system of valves in which the valves operate over a designated pressure interval and are arranged to actuate performance of a sequenced set of events by downhole tools with the application of pressure to said valves.
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