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Valeri Papanyan
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Houston, TX, US
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last 30 patents
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Patent Grant
Optical probe for analysis of formation fluids
Patent number
6,388,251
Issue date
May 14, 2002
Baker Hughes, Inc.
Valeri Papanyan
E21 - EARTH DRILLING MINING
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Patent Grant
Drilling systems with sensors for determining properties of drillin...
Patent number
6,176,323
Issue date
Jan 23, 2001
Baker Hughes Incorporated
John B. Weirich
E21 - EARTH DRILLING MINING