ALEXANDRIA, Va., June 6 -- United States Patent no. 12,283,440, issued on April 22, was assigned to Trantek Electronics Co. Ltd. (Huizhou, China).

"Keyboard switch with removeable supporting member" was invented by Zhengming Yu (Huizhou, China) and Jianbing Peng (Huizhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a keyboard switch including a base, a supporting member, a spring, a button and an upper cover. The supporting member includes a first plate connected to the base to seal the opening, a tube extending substantially perpendicularly from a surface of the first plate, and a plurality of blocks extending substantially perpendicularly from the first plate and c...