INTERNATIONAL PATENT: CHANG'AN UNIVERSITY, 长安大学 FILES APPLICATION FOR "MOUNTAIN TUNNEL WATERPROOF AND DRAINAGE STRUCTURE FACILITATING MAINTENANCE AND REPLACEMENT AND CONSTRUCTION METHOD"

GENEVA, March 9 -- CHANG'AN UNIVERSITY (Middle-Section of Nan'er Huan RoadXi'an, Shaanxi 710064), 长安大学 (中国陕西省西安市碑林区二环南路中段126号) filed a patent application (PCT/CN2025/116791) for "MOUNTAIN TUNNEL WATERPROOF AND DRAINAGE STRUCTURE FACILITATING MAINTENANCE AND REPLACEMENT AND CONSTRUCTION METHOD" on Aug 25, 2025. With publication no. WO/2026/046127, the details related to the patent application was published on Mar 05, 2026.

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