GENEVA, July 6 -- CHINA RAILWAY SHANGHAI ENGINEERING GROUP MUNICIPAL ENVIRONMENTAL PROTECTION CO., LTD. filed a patent application (CN2025/113440) for “CONSTRUCTION METHOD FOR PIPE INSERTION BY MEANS OF BUOYANCY”. With publication no. WO/2026/137877, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: F16L 1/028
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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