ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,727,728, issued on Sept. 8, was assigned to Qfeeltech (Beijing) Co. Ltd. (Beijing).

"Method for controlling rotating speed, cleaning robot, and storage medium" was invented by Wulin Tian (Beijing) and Yafei Shen (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a method for controlling a rotating speed, a cleaning robot, and a storage medium. The method includes: obtaining the rotating speed of the main brush when the main brush cleans a surface-to-be-cleaned; comparing the rotating speed of the main brush with a predetermined rotating speed; decreasing the rotating speed when the rotating speed is greater than the ...