US Patent Issued to Ningbo Hyderon Hardware on Aug. 11 for "Dual-purpose door stopper used for hair and smooth surfaces" (Chinese Inventor)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,009, issued on Aug. 11, was assigned to Ningbo Hyderon Hardware Co. Ltd. (Yuyao, China).

"Dual-purpose door stopper used for hair and smooth surfaces" was invented by Lifeng Zhang (Yuyao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A door stopper used for hair and smooth surfaces comprising a rigid inner core; the rigid inner core is configured to be a slope structure; a concave surface at one end of the bottom surface of the end portion of the rigid inner core is provided with a rubber-coated positioning ring for positioning during the injection molding process; a circular soft magnet sheet is embedded in a lower end surface of the rigid i...