Dah-Chieh O. Cheng

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Kingsport, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of .alpha.-halogenated cresol esters
- Patent number 4,342,877
- Issue date Aug 3, 1982
- Eastman Kodak Company
- Dah-Chieh O. Cheng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 2-amino-5-nitrothiazole
- Patent number 4,269,985
- Issue date May 26, 1981
- Eastman Kodak Company
- Dah-Chieh O. Cheng
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of p-nitroaniline compounds by the alka...
- Patent number 4,151,203
- Issue date Apr 24, 1979
- Eastman Kodak Company
- Dah-Chieh O. Cheng
- C07 - ORGANIC CHEMISTRY