ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,024, issued on April 21.

"Tile leveler" was invented by Hui-Chuan Liao (Oakland, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tile leveler has a base and a spin cover. The base has a clamping board, a connecting slice, and a connecting rod. The spin cover is detachably connected to the base, is a transparent cover, and has a screw portion and a spin portion. The screw portion is disposed on a top of the spin cover and is connected to the connecting rod. The spin portion is connected to the screw portion and has at least one rotating strip. Each one of the at least one rotating strip has an abutted-curved face disposed on an outer side of...