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Jason Kamphaus
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Singapore, SG
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last 30 patents
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Patent Grant
Barrier side pocket mandrel and gas life valve
Patent number
8,881,825
Issue date
Nov 11, 2014
Schlumberger Technology Corporation
Thomas M. White
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
SIDE POCKET BARRIER VALVE GAS LIFT AND MANDREL
Publication number
20110315401
Publication date
Dec 29, 2011
Thomas M. White
E21 - EARTH DRILLING MINING