Inventor · disambiguated record
Hwa Yeong Choi
Also filed as: CHOI HWA YEONG
2 granted patents·1 pending application·0 citations·filing 2022–2024
23Inventor score
Files withJAEWON IND CO LTD3
Top patents by PatentIndex Score
3 records- 0173US12482828B2Method for preparing a cathode of a secondary battery and a purified N-methyl pyrrolidone, and purifying a waste N-methyl pyrrolidone using an inhibitorJAEWON IND CO LTD·Filed 2024·Granted Nov 25, 2025·0 cites·16 claims
- 0258US12454505B2Method for purifying an alkylene glycol monoalkyl ether carboxylic acid ester having high-purity used in photo resist processJAEWON IND CO LTD·Filed 2022·Granted Oct 28, 2025·0 cites·10 claims
- 0348US2023192609A1Method for puriyfing waste n-methyl-2-pyrrolidoneJAEWON IND CO LTD·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →