ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,466, issued on July 28, was assigned to Nanjing Bready Advanced Materials Technology Co. Ltd. (Nanjing, China).
"Coating production device for optical film" was invented by Yong Liu (Nanjing, China) and Hongliang Zhu (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coating production device for an optical film includes a base plate. Supporting rods are fixed on a top at both front and rear sides of the base plate. A transverse plate is jointly fixed on outer walls at opposite surfaces of the two supporting rods by a fixing rod. A Y-shaped tube is mounted on a bottom of the transverse plate. The Y-shaped tube includes a vertical tube ...