ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,228, issued on Nov. 25, was assigned to Nanjing JiangDa Trading Co. Ltd. (Nanjing, China).
"Portable toilet seat" was invented by Weidong Li (Quanzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable toilet seat is provided, including an upper seat cushion plate. One side of the upper seat cushion plate is rotatably connected to a lower seat cushion plate, a retractable rectangular bushing is arranged on the upper seat cushion plate, a limiting fastening plate is arranged at a central position of an upper surface of the retractable rectangular bushing, a telescopic plate is movably connected inside the retractable rectangular bushing...