ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,557,958, issued on Feb. 24, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Robot cleaner" was invented by Youngbin Kim (Seoul, South Korea), Jaewon Jang (Seoul, South Korea), Minwoo Lee (Seoul, South Korea) and Yeongjae Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a robot cleaner including: a body including a lower body and an upper body for covering the lower body, the body having a space for accommodating a battery, a water container, and a motor therein; a first rotary plate having a lower portion to which a first mop is coupled; and a second rotary plate having a lower portion t...