David L. Natwig

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Brighton, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Cobalt stripping process
- Patent number 4,083,915
- Issue date Apr 11, 1978
- Kennecott Copper Corporation
- Gale L. Hubred
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Scrubbing of ammonia from oxime liquid ion exchange reagents
- Patent number 4,012,482
- Issue date Mar 15, 1977
- Kennecott Copper Corporation
- David L. Natwig
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Liquid ion exchange process for the recovery of copper and nickel
- Patent number 3,988,151
- Issue date Oct 26, 1976
- Kennecott Copper Corporation
- Roald R. Skarbo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for recovering copper from basic carbonate mixtures
- Patent number 3,950,488
- Issue date Apr 13, 1976
- Kennecott Copper Corporation
- Roald R. Skarbo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...