GENEVA, June 24 -- CHINA NATIONAL PETROLEUM CORPORATION filed a patent application (CN2025/129339) for “DRIVING SUB FOR HYDRAULIC OSCILLATOR”. With publication no. WO/2026/113749, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: E21B 17/08
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
Disclaimer: Curated by HT Syndication....