INTERNATIONAL PATENT: PETROCHINA COMPANY LIMITED, 中国石油天然气股份有限公司 FILES APPLICATION FOR "METHOD AND SYSTEM FOR PREPARING STARTING MATERIAL OF CARBON MATERIAL BY MEANS OF STAGED HYDROGENATION OF HEAVY OIL"

GENEVA, May 9 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North StreetDongcheng District, Beijing 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/CN2024/142062) for "METHOD AND SYSTEM FOR PREPARING STARTING MATERIAL OF CARBON MATERIAL BY MEANS OF STAGED HYDROGENATION OF HEAVY OIL" on Dec 25, 2024. With publication no. WO/2026/091280, the details related to the patent application was published on May 07, 2026.

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