Norman L. Dean

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Lake Jackson, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of highly chlorinated pyridines
- Patent number 4,281,135
- Issue date Jul 28, 1981
- The Dow Chemical Company
- Donald J. Perettie
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for recovering 2,3,5,6-tetrachloropyridine
- Patent number 4,225,718
- Issue date Sep 30, 1980
- The Dow Chemical Company
- Donald J. Perettie
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of tetrachloropyridine
- Patent number 3,993,654
- Issue date Nov 23, 1976
- The Dow Chemical Company
- Norman LeRoy Dean
- C07 - ORGANIC CHEMISTRY