ALEXANDRIA, Va., May 12 -- United States Patent no. 12,622,554, issued on May 12, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Suwon-si, South Korea).
"Vacuum cleaner" was invented by Jiwon Choi (Suwon-si, South Korea) and Byoungin Lee (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum cleaner is provided. The vacuum cleaner includes a cleaner body generating a suction force, and a suction unit comprising a suction chamber opened to suck foreign materials by the suction force. The suction unit includes a brush drum partially protruding toward an outside of the suction chamber within the suction chamber and provided rotatably, and a blade provided to collect foreign materials as e...