International Patent: URBAN DEEP-TUNNEL ARRANGEMENT STRUCTURE CAPABLE OF FORWARD DRAINAGE AND REVERSE WATER REPLENISHMENT, AND OPERATING METHOD

GENEVA, June 26 -- POWERCHINA HUADONG ENGINEERING CORPORATION LIMITED filed a patent application (CN2025/138024) for “URBAN DEEP-TUNNEL ARRANGEMENT STRUCTURE CAPABLE OF FORWARD DRAINAGE AND REVERSE WATER REPLENISHMENT, AND OPERATING METHOD”. With publication no. WO/2026/118988, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: E03F 1/00

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

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