International Patent: OIL CASING STEEL PIPE, AND MANUFACTURING METHOD THEREFOR AND APPLICATION THEREOF IN SOUR OIL AND GAS WELL

GENEVA, June 26 -- CHINA UNIVERSITY OF PETROLEUM-BEIJING filed a patent application (CN2025/140106) for “OIL CASING STEEL PIPE, AND MANUFACTURING METHOD THEREFOR AND APPLICATION THEREOF IN SOUR OIL AND GAS WELL”. With publication no. WO/2026/119251, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: C22C 38/42

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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