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Mike Dion
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Houston, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Hydraulically activated selective circulating/reverse circulating p...
Patent number
6,554,076
Issue date
Apr 29, 2003
Weatherford/Lamb, Inc.
Brett Guillory
E21 - EARTH DRILLING MINING
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Patent Grant
Hydraulic port collar
Patent number
5,443,124
Issue date
Aug 22, 1995
CTC International
Edward T. Wood
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
Hydraulically activated selective circulating/reverse circulating p...
Publication number
20020117309
Publication date
Aug 29, 2002
Brett Guillory
E21 - EARTH DRILLING MINING