ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,037, issued on May 26, was assigned to YOKE INDUSTRIAL CORP. (Taichung City, Taiwan).
"Expandable anchoring device" was invented by Chia-Hsien Wang (Taichung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An expandable anchoring device includes several openings around a periphery of a tube body. Two opposite ends of the tube body along an axial direction are respectively defined a distal end and a proximal end. Several blocks respectively pass through one of the openings. A length of a distal end side wall of each block along a radial direction is smaller than a length of a proximal end side wall of each block along the radial direction....