ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,011, issued on July 14, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Cleaner" was invented by Jonghyun Seo (Seoul, South Korea), Mantae Hwang (Seoul, South Korea), Chungjae Ryu (Seoul, South Korea) and Jinwoo Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaner is disclosed. The cleaner according to an embodiment of the present disclosure includes a body, a rotating plate rotatably coupled to the body and including an edge portion having a predetermined height (h1) in a vertical direction, a mop coupled to a bottom surface of the rotating plate, and a blocking rib protruding downward from the body and formed...