ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,537, issued on May 13, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Robot cleaner with ascending/descending guides" was invented by Woo Hong (Seoul, South Korea) and Sangik Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a robot cleaner. The robot cleaner comprises: a cleaner body equipped with a driving wheel; and a cleaning nozzle mounted inside a downwardly open opening portion in a lower portion of the cleaner body so as to be able to ascend and descend. The cleaning nozzle can be supported by a plurality of ascending/descending guides and a plurality of auxiliary ascending/de...