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Joseph D. Scranton
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Tulsa, OK, US
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last 30 patents
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Patent Grant
Gravel packer and service tool
Patent number
5,069,280
Issue date
Dec 3, 1991
Dowell Schlumberger Incorporated
L. Michael McKee
E21 - EARTH DRILLING MINING
Information
Patent Grant
Packer and service tool assembly
Patent number
4,862,957
Issue date
Sep 5, 1989
Dowell Schlumberger Incorporated
Joseph D. Scranton
E21 - EARTH DRILLING MINING
Information
Patent Grant
Packer and service tool assembly
Patent number
4,660,637
Issue date
Apr 28, 1987
Dowell Schlumberger Incorporated
Howard L. McGill
E21 - EARTH DRILLING MINING