Inventor
HWANG JIH-DAR
TW6 patents
⚠️ This page may combine multiple inventors who share the name “HWANG JIH-DAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHINA PETROCHEMICAL DEV CORP
5 patentsUS6063958AMay 16, 2000
Method of recovering adipic acid and 6-hydroxycaproic acid from waste solution of alkali metal salts of organic acids coming from the process of cyclohexane oxidation
CHINA PETROCHEMICAL DEV CORP20 citations86
US7671236B2Mar 2, 2010
Process for production of cyclohexanone oxime
CHINA PETROCHEMICAL DEV CORP2 citations51
US9518024B2Dec 13, 2016
Method and system for preparing caprolactam
CHINA PETROCHEMICAL DEV CORP0 citations46
US9012679B2Apr 21, 2015
Method for continuously preparing carboxylic acid ester
CHINA PETROCHEMICAL DEV CORP0 citations46
US7785549B2Aug 31, 2010
Recycling system for hydroxylamine formation and oximation
CHINA PETROCHEMICAL DEV CORP0 citations32