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John A. Powers
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New Albany, PA, US
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last 30 patents
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Patent Grant
Recovery of tungsten and molybdenum
Patent number
4,961,910
Issue date
Oct 9, 1990
GTE Products Corporation
Clarence D. Vanderpool
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for recovering tungsten from organic solutions
Patent number
4,882,131
Issue date
Nov 21, 1989
GTE Products Corporation
John A. Powers
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Separation of tungsten from rhenium
Patent number
4,599,223
Issue date
Jul 8, 1986
GTE Products Corporation
Alan D. Douglas
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for producing ammonium metatungstate from ammonium paratungs...
Patent number
4,557,923
Issue date
Dec 10, 1985
GTE Products Corporation
John A. Powers
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process of preparing lubricating oil additive containing tungsten
Patent number
4,298,485
Issue date
Nov 3, 1981
GTE Products Corporation
John A. Powers
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Flame spray powder of cobalt-molybdenum mixed metal agglomerates us...
Patent number
4,011,073
Issue date
Mar 8, 1977
GTE Sylvania Incorporated
John Allen Powers
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...