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Claus Endruhn
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Houston, TX, US
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last 30 patents
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Patent Grant
Re-settable and anti-rotational contraction joint with control lines
Patent number
8,061,430
Issue date
Nov 22, 2011
Schlumberger Technology Corporation
Michael H. Du
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
RE-SETTABLE AND ANTI-ROTATIONAL CONTRACTION JOINT WITH CONTROL LINES
Publication number
20100224375
Publication date
Sep 9, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING