US Patent 8511377 Open hole non-rotating sleeve and assembly
Patent 8511377 was granted and assigned to Wwt International (Western Well Tool) on August, 2013 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
October 26, 2010
Date of Patent
August 20, 2013
Patent Application Number
12912610
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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