ALEXANDRIA, Va., May 26 -- United States Patent no. 12,635,841, issued on May 26, was assigned to Dreame Innovation Technology (Suzhou) Co. Ltd. (Suzhou, China).

"Control method for cleaning robot" was invented by Shuai Du (Suzhou, China), Chenggang Xiong (Suzhou, China) and Shangtai Song (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a control method for cleaning robot, the method comprises: in case where a wet cleaning assembly performs a cleaning task on the operating surface at least in a mopping state, the cleaning robot is being hijacked and the time of being hijacked is greater than a preset time, the wet cleaning assembly changes from the mopping state t...