Andrew B. Case

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Harvey, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Recovery of chromium in high purity state from waste materials of e...
- Patent number 5,171,547
- Issue date Dec 15, 1992
- Amax, Inc.
- Ranko Crnojevich
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Reclaiming of aluminum-chromium waste materials from etching operat...
- Patent number 4,954,168
- Issue date Sep 4, 1990
- Amax Inc.
- Ranko Crnojevich
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...