GENEVA, July 9 -- CNPC GREATWALL DRILLING COMPANY filed a patent application (CN2025/117097) for “CEMENT-BASED COMPOSITION AND USE THEREOF, AND CEMENT SLURRY, AND PREPARATION METHOD THEREFOR AND USE THEREOF”. With publication no. WO/2026/144209, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: C04B 28/00
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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