ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,484,747, issued on Dec. 2, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Vacuum cleaner" was invented by Phil Jae Hwang (Seoul, South Korea), Chung Jae Ryu (Seoul, South Korea), Chi Wan Kim (Seoul, South Korea), Gyoung Min Lee (Seoul, South Korea) and Yun Bo Park (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum cleaner includes a main body and a suction nozzle. The suction nozzle includes a housing, a driver, a rotating brush, and a detachable cover. A pressing button is mounted in the housing. The detachable cover is rotated about the rotational axis of the rotating brush to be mounted in the housing. The pressing...