INTERNATIONAL PATENT: PETROCHINA COMPANY LIMITED, 中国石油天然气股份有限公司 FILES APPLICATION FOR "PREPARATION METHOD FOR RUBBER GRAFT POLYMER"

GENEVA, March 16 -- PETROCHINA COMPANY LIMITED (9 Dongzhimen North Street,Dongcheng 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/CN2023/137854) for "PREPARATION METHOD FOR RUBBER GRAFT POLYMER" on Dec 11, 2023. With publication no. WO/2025/050550, the details related to the patent application was published on Mar 13, 2025.

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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