Inventor · disambiguated record
Chi K. Dien
Also filed as: DIEN CHI K
2 granted patents·27 citations·filing 1973–1989
61Inventor score
Top patents by PatentIndex Score
2 records- 0167US3954392ACopper phthalocyanine N-Di-N-butylaminoalkyl sulfonamide, quaternized solutions of the quaternary compound, and paper dyeing therewithALLIED CHEM·Filed 1973·Granted May 4, 1976·14 cites·9 claims
- 0249US4990187AProcess for preparing gravure base inkSUN CHEMICAL CORP·Filed 1989·Granted Feb 5, 1991·13 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →