International Patent: WIDE-TEMPERATURE-RANGE COMMUNICATION CIRCUIT SUITABLE FOR DOWNHOLE COMMUNICATION, COMMUNICATION METHOD, AND CHIP

GENEVA, Aug. 21 -- CNPC GREATWALL DRILLING COMPANY filed a patent application (CN2025/144413) for “WIDE-TEMPERATURE-RANGE COMMUNICATION CIRCUIT SUITABLE FOR DOWNHOLE COMMUNICATION, COMMUNICATION METHOD, AND CHIP”. With publication no. WO/2026/170841, here are the other details related to the patent application:

Kind: Initial Publication with ISR [A1]

IPC: H04L 27/12

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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