Donald J. Hansen

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Lewiston, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of operating a heap leach for recovering uranium and vanadium
- Patent number 4,701,309
- Issue date Oct 20, 1987
- Umetco Minerals Corporation
- Sundaresan Ramachandran
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for recovering vanadium from vanadium-containing ore
- Patent number 4,666,512
- Issue date May 19, 1987
- U.S. Vanadium Corp.
- Donald J. Hansen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for electrolytic deposition of manganese
- Patent number 4,149,944
- Issue date Apr 17, 1979
- Union Carbide Corporation
- John B. Goddard
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Oxidation of molten ferrophosphorous
- Patent number 3,998,631
- Issue date Dec 21, 1976
- Union Carbide Corporation
- Donald J. Hansen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...