GENEVA, June 19 -- CHINA NATIONAL PETROLEUM CORPORATION filed a patent application (CN2025/126147) for “OILFIELD DOWNHOLE FRACTURING SYSTEM AND HEAT EXCHANGE DEVICE”. With publication no. WO/2026/103382, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: F28D 7/16
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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