Herbert I. Lewis

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Wrens, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for improving handleability of calcined kaolin clay products
- Patent number 4,693,427
- Issue date Sep 15, 1987
- E.C.C. America Inc.
- Bomi M. Bilimoria
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for brightening natural calcitic ores
- Patent number 4,293,097
- Issue date Oct 6, 1981
- Anglo-American Clays Corporation
- Herbert I. Lewis
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for brightening natural calcitic ores
- Patent number 4,165,840
- Issue date Aug 28, 1979
- Anglo-American Clays Corporation
- Herbert I. Lewis
- C01 - INORGANIC CHEMISTRY