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Richard E. Allred
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St. Paul, MN, US
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last 30 patents
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Patent Grant
Device for assembling jacketed lengths of pipe base well screens
Patent number
4,506,730
Issue date
Mar 26, 1985
UOP Inc.
Chris D. McCollin
E21 - EARTH DRILLING MINING
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Patent Grant
Coated screen jacket and coated pipe base assembly and method of ma...
Patent number
4,284,138
Issue date
Aug 18, 1981
UOP Inc.
Richard E. Allred
E21 - EARTH DRILLING MINING