International Patent: LEAK-PROOF MATERIAL FOR WELL CEMENTATION PAD FLUID AND PREPARATION METHOD THEREFOR, AND WELL CEMENTATION LEAK-PROOF PAD FLUID SYSTEM AND USE THEREOF

GENEVA, June 24 -- CHINA NATIONAL PETROLEUM CORPORATION filed a patent application (CN2025/126479) for “LEAK-PROOF MATERIAL FOR WELL CEMENTATION PAD FLUID AND PREPARATION METHOD THEREFOR, AND WELL CEMENTATION LEAK-PROOF PAD FLUID SYSTEM AND USE THEREOF”. With publication no. WO/2026/113648, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: C08F 220/14

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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