ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,942, issued on May 27, was assigned to DONGWOO FINE-CHEM Co. LTD. (Iksan-si, South Korea).

"Optical laminate and manufacturing method therefor, smart window comprising same, and vehicle and building windows and doors to which same are applied" was invented by Dong-Hwi Kim (Sejong, South Korea) and Geo-San Lim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a variable transmittance optical laminate and a manufacturing method therefor, a smart window comprising same, and vehicle and building windows and doors to which same is applied, the variable transmittance optical laminate comprising: a first po...