ALEXANDRIA, Va., July 9 -- United States Patent no. 12,349,855, issued on July 8, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Vacuum cleaner" was invented by Jung Woo Lee (Seoul, South Korea), Jin Rae Cho (Seoul, South Korea), Phil Jae Hwang (Seoul, South Korea), Nam Il Woo (Seoul, South Korea) and Taek Gi Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a vacuum cleaner. The vacuum cleaner according to the present disclosure includes a main body and a suction nozzle. The suction nozzle includes a housing and a rotating brush. The rotating brush includes a first rotating brush, a second rotating brush, and a coupler. The coupler couples the first rotating bru...