ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,073, issued on Feb. 17, was assigned to Anker Innovations Technology Co. Ltd. (Changsha, China).
"Ground cleaning device" was invented by Rongkun Dai (Shenzhen, China), Chuoying Lu (Shenzhen, China), Chunhong Li (Shenzhen, China), Guisheng Nong (Shenzhen, China) and Qinghe Fan (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure describes a ground cleaning device that comprises a ground brush, a main body, and a fan. The fan may be located inside the main body and may comprise an air inlet and an air outlet. The main body may comprise a main air outlet channel, a front air outlet channel, and a rear air outlet chann...