ALEXANDRIA, Va., June 4 -- United States Patent no. 12,321,139, issued on June 3.
"Waterproof protective case for smart watches" was invented by Yulan Liu (Xinyu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A waterproof protective case for a smart watch, comprising a main body, a transparent cover, a waterproof ring and a bottom cover. The transparent cover is bonded to an opening on top of the main body by glue. Directly bonding with glue not only has the function of installing the transparent cover, but the cured glue forms an apron and has the function of waterproofing. A waterproof ring is additionally arranged on an inner wall surface of the main body, and is combined with the inner wall surfac...