ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,207,784, issued on Jan. 28, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Robotic cleaner" was invented by Woo Hong (Seoul, South Korea), Sangik Lee (Seoul, South Korea) and Jongho Park (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a robotic cleaner comprising: a cleaner body which has a plurality of guide holders provided therein and performs self-driving; and a suction nozzle which receives an agitator therein, has guide protrusions longitudinally protruding from both sidewalls thereof toward the plurality of guide holders and received in the plurality of guide holders, respectively, a...