GENEVA, Dec. 21 -- CHENG, Hu (168 Baibuting Garden Road, Jiang'an DistrictWuhan, Hubei 430000), 程虎 (中国湖北省武汉市江岸区百步亭花园路168号) filed a patent application (PCT/CN2024/099131) for "VACUUM DRAINAGE STRUCTURE AND SYSTEM BASED ON DOME SUPPORT" on Jun 14, 2024. With publication no. WO/2025/255791, the details related to the patent application was published on Dec 18, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
Inventor(s): CHENG, Hu (168 Baibuting Garden Road, Jiang'an Dis...