International Patent: CEMENT EXPANSION AND REINFORCING MATERIAL FOR WIDE TEMPERATURE RANGE CEMENTING AND PREPARATION METHOD THEREFOR

GENEVA, June 19 -- CHINA NATIONAL PETROLEUM CORPORATION filed a patent application (CN2025/123146) for “CEMENT EXPANSION AND REINFORCING MATERIAL FOR WIDE TEMPERATURE RANGE CEMENTING AND PREPARATION METHOD THEREFOR”. With publication no. WO/2026/103346, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: C09K 8/42

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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