Inventor

KO TZU-HENG

TW3 patents

Patents

3 patents

US8512421B2Aug 20, 2013

Polyurethane derivatives, composition thereof and dye additives comprising the polyurethane derivatives

EVERLIGHT CHEM IND CORP0 citations41

US10005958B2Jun 26, 2018

Polyurethane-based UV absorber

EVERLIGHT CHEM IND CORP0 citations40

US9683202B2Jun 20, 2017

Softener composition

EVERLIGHT CHEM IND CORP0 citations28