Inventor · disambiguated record
Dah-Chieh O. Cheng
Also filed as: CHENG DAH-CHIEH O
3 granted patents·9 citations·filing 1978–1980
62Inventor score
Files withEASTMAN KODAK CO3
Top patents by PatentIndex Score
3 records- 0155US4269985AProcess for the preparation of 2-amino-5-nitrothiazoleEASTMAN KODAK CO·Filed 1980·Granted May 26, 1981·4 cites·10 claims
- 0250US4342877AProcess for the preparation of α-halogenated cresol estersEASTMAN KODAK CO·Filed 1979·Granted Aug 3, 1982·3 cites·9 claims
- 0338US4151203AProcess for the preparation of p-nitroaniline compounds by the alkaline hydrolysis of mixed anilidesEASTMAN KODAK CO·Filed 1978·Granted Apr 24, 1979·2 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →