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John G. Harkness
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Houston, TX, US
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last 30 patents
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Patent Grant
Flow control in multilateral wells
Patent number
6,561,277
Issue date
May 13, 2003
Schlumberger Technology Corporation
John Algeroy
E21 - EARTH DRILLING MINING
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last 30 patents
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Patent Application
Flow control in multilateral wells
Publication number
20020050358
Publication date
May 2, 2002
John Algeroy
E21 - EARTH DRILLING MINING