International Patent: FILTRATION DEVICE, VALVE AND FRACTURING FLUID TANK

GENEVA, June 26 -- CNPC GREATWALL DRILLING COMPANY filed a patent application (CN2025/140246) for “FILTRATION DEVICE, VALVE AND FRACTURING FLUID TANK”. With publication no. WO/2026/119266, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: B01D 29/03

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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