ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,991, issued on Sept. 22, was assigned to GUANGYI INTELLIGENT TECH (SUZHOU) Co. LTD. (Jiangsu, China).
"Dimming device and dimming apparatus" was invented by Weishu Wang (Jiangsu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dimming device and a dimming apparatus. The dimming device includes a dimming film. The dimming film includes a first area and a second area, and the second area is arranged surrounding a circumference of the first area. The dimming film includes a preset point O and a preset division line M, where the preset division line M divides the dimming film into a first part and a second part, and the preset point O is located...