ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,443,071, issued on Oct. 14, was assigned to DONGWOO FINE-CHEM Co. LTD. (Iksan-si, South Korea).
"Optical stack and manufacturing method therefor, and smart window comprising same and vehicle or building window to which same is applied" was invented by Dong-Hwi Kim (Sejong, South Korea), Seung-Won Song (Seoul, South Korea), Hong-Jun Ahn (Seoul, South Korea), Pyoung-Yun Oh (Pyeongtaek-si, South Korea) and Yu-Jin Lee (Goyang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a transmittance variable optical stack and a manufacturing method therefor, and a smart window comprising same and a vehicle to which the s...