ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,372, issued on Nov. 3, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).
"Automatic cleaning apparatus" was invented by Xing Li (Changping District, China), Pan Cheng (Changping District, China), Chuanlin Duan (Changping District, China), Erdong Gu (Changping District, China) and Rongxin Hu (Changping District, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An automatic cleaning apparatus that comprises a mobile platform configured to move automatically on an operation surface; a cleaning module disposed on the mobile platform and comprising: a dry-cleaning module configured to clean at least a part of the operation surface by mea...