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US Patent 9382778 Breaking of frangible isolation elements
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Is a
Patent
Date Filed
September 9, 2013
Date of Patent
July 5, 2016
Patent Application Number
13987840
Patent Citations Received
US Patent 12123281 Barrier member
0
US Patent 11697968 Casing float tool
0
US Patent 11988066 Dynamic underbalance sub
0
US Patent 12104449 Sealing system and method
0
Patent Inventor Names
W. Lynn Frazier
0
Patent Jurisdiction
United States Patent and Trademark Office
Patent Number
9382778
Patent Primary Examiner
Taras P Bemko
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