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Wayne V. Vogen
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Oakland, CA, US
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last 30 patents
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Patent Grant
Method and apparatus for improving oil production in oil wells
Patent number
4,674,571
Issue date
Jun 23, 1987
URS Corporation
Wayne V. Vogen
E21 - EARTH DRILLING MINING
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Patent Grant
Method and apparatus for removing stuck portions of a drill string
Patent number
4,574,888
Issue date
Mar 11, 1986
URS Corporation
Wayne V. Vogen
E21 - EARTH DRILLING MINING