Peter H. Yu

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Harvey, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for the recovery of gold using autoclaving
- Patent number 4,738,718
- Issue date Apr 19, 1988
- Freeport Minerals Company
- Nandkumar Bakshani
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Production of metals with low selenium contents
- Patent number 4,497,659
- Issue date Feb 5, 1985
- Amax Inc.
- Ranko Crnojevich
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of nonferrous metals with low selenium contents
- Patent number 4,214,900
- Issue date Jul 29, 1980
- Amax Inc.
- Ranko Crnojevich
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Cathodic dissolution of cobaltic hydroxide
- Patent number 4,175,014
- Issue date Nov 20, 1979
- Amax Inc.
- Ranko Crnojevich
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR