John A. Thomas

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Norval, CA

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Patents Grantslast 30 patents

Information Patent Grant
Chromium recovery from superalloy scrap by selective chlorine leaching
- Patent number 4,377,410
- Issue date Mar 22, 1983
- The United States of America as represented by the Secretary of the Interior
- John A. Thomas
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for the recovery of metal values from anode slimes
- Patent number 4,229,270
- Issue date Oct 21, 1980
- The International Nickel Co., Inc.
- Kohur N. Subramanian
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Nickel recovery from sulfur-deficient mattes
- Patent number 4,201,648
- Issue date May 6, 1980
- The International Nickel Co., Inc.
- Kojur N. Subramanian
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...