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Mitchell G. Willcox
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Houston, TX, US
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last 30 patents
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Patent number
6,564,876
Issue date
May 20, 2003
Schlumberger Technology Corporation
Vladimir Vaynshteyn
E21 - EARTH DRILLING MINING
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Patent number
6,315,050
Issue date
Nov 13, 2001
Schlumberger Technology Corp.
Vladimir Vaynshteyn
E21 - EARTH DRILLING MINING
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Patent number
6,186,227
Issue date
Feb 13, 2001
Schlumberger Technology Corporation
Vladimir Vaynshteyn
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Publication number
20010015277
Publication date
Aug 23, 2001
Vladimir Vaynshteyn
E21 - EARTH DRILLING MINING
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Publication number
20010002621
Publication date
Jun 7, 2001
Vladimir Vaynshteyn
E21 - EARTH DRILLING MINING