Vernon R. Ewing

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Denver, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for recovering aluminum from alunite
- Patent number 4,230,678
- Issue date Oct 28, 1980
- Earth Sciences, Inc.
- George J. Hartman
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Production of monobasic potassium phosphate by ion exchange
- Patent number 4,008,307
- Issue date Feb 15, 1977
- Southwire Company
- Kent W. Loest
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for recovering aluminum from alunite
- Patent number 3,996,334
- Issue date Dec 7, 1976
- Southwire Company
- George J. Hartman
- C01 - INORGANIC CHEMISTRY