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Michael Gardner
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Farmers Branch, TX, US
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last 30 patents
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Patent Grant
Remote actuated plug apparatus
Patent number
6,431,276
Issue date
Aug 13, 2002
Halliburton Energy Services, Inc.
Ewan O. Robb
E21 - EARTH DRILLING MINING
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Patent Grant
Remote actuated plug method
Patent number
6,161,622
Issue date
Dec 19, 2000
Halliburton Energy Services, Inc.
Ewan O. Robb
E21 - EARTH DRILLING MINING