US Patent Issued to Beijing Roborock Technology on Sept. 8 for "Filtering element, dust collection pile, and cleaning system" (Chinese Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,376, issued on Sept. 8, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).

"Filtering element, dust collection pile, and cleaning system" was invented by Chengyang Wang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A filtering element, a dust collection pile, and a cleaning system are disclosed. The filtering element includes a frame and a filter screen. The filter screen id disposed on the frame. A receiving groove is formed on the filter screen. The receiving groove includes a first opening, a second opening, and a third opening, wherein the first opening and the second opening are provided opposite to each other, and both e...