GENEVA, Nov. 17 -- BEIJING ROBOROCK TECHNOLOGY CO., LTD. (Room 1001, Floor 10, Building 3, Yard 17Anju RoadChangping District, Beijing 102206), 北京石头世纪科技股份有限公司 (中国北京市昌平区安居路17号院3号楼10层1001) filed a patent application (PCT/CN2025/091845) for "DRAINAGE DEVICE AND CLEANING APPARATUS" on Apr 28, 2025. With publication no. WO/2025/232629, the details related to the patent application was published on Nov 13, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the...