ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,626, issued on May 19, was assigned to SHENZHEN PUREMATE TECHNOLOGY Co. LTD. (Shenzhen, China).
"Air purifier" was invented by Fangsheng Yan (Shenzhen, China), Xiang Zheng (Shenzhen, China), Bo Yang (Shenzhen, China) and Shengbin Wen (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air purifier includes a housing, a main circuit board provided in the housing, and an adjustment assembly including a display screen, a display circuit board, an encoder, a knob assembly, a first flexible flat cable, a second flexible flat cable, and a fixed connection board provided with a cable threading hole. The encoder includes a fixed seat and a rot...