ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,081, issued on Oct. 14, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).

"Cleaning assembly and smart cleaning device" was invented by Xiaoming Liu (Beijing) and Erdong Gu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a cleaning assembly and a smart cleaning device. The cleaning assembly is capable of being mounted on a machine body of a smart cleaning device and includes a connecting plate and a soft cleaning body, wherein the connecting plate and the soft cleaning body are detachably connected through a slide assembly, the slide assembly includes a mounting groove and a guide bar which are...