ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,727,732, issued on Sept. 8, was assigned to Positec Power Tools (Suzhou) Co. Ltd (Jiangsu, China).
"Cleaning robot system" was invented by Hongbing Wu (Suzhou, China), Shisong Zhang (Suzhou, China) and Hongfeng Zhong (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning robot system, including a cleaning robot with a cleaning module connected to the cleaning robot. The cleaning module includes a main body, connectable with a cleaning medium to wipe a working surface. The main body is provided with a connection region for connection of the cleaning medium and a demounting region for demounting of the cleaning medium, and no interconnec...