INTERNATIONAL PATENT: PETROCHINA COMPANY LIMITED, 中国石油天然气股份有限公司 FILES APPLICATION FOR "CATALYST FOR CARBON NANOTUBES AND PREPARATION METHOD THEREFOR AND PREPARATION METHOD FOR CARBON NANOTUBES"

GENEVA, July 7 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North Street, Dongcheng DistrictBeijing 100007), 中国石油天然气股份有限公司 (中国北京市东城区东直门北大街9号) filed a patent application (PCT/CN2024/128229) for "CATALYST FOR CARBON NANOTUBES AND PREPARATION METHOD THEREFOR, AND PREPARATION METHOD FOR CARBON NANOTUBES" on Oct 29, 2024. With publication no. WO/2025/139328, the details related to the patent application was published on Jul 03, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is manage...