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Daniel W. Kestner
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Coraopolis, PA, US
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last 30 patents
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Patent Grant
Method of and apparatus for processing of oil shale
Patent number
4,425,220
Issue date
Jan 10, 1984
Dravo Corporation
Daniel W. Kestner
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Fine particulate removal from oil shale on a travelling grate retort
Patent number
4,381,988
Issue date
May 3, 1983
Dravo Corporation
Daniel W. Kestner
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Process for stabilizing aqueous coal sludges
Patent number
4,015,997
Issue date
Apr 5, 1977
Dravo Corporation
Joseph G. Selmeczi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES