Oil & Gas
| Fri 03 Jul 2026
Beijing, July 3 -- State Intellectual Property Office of China has published Petrochina Co Limited patent application for Polyolefin Preparation Method and Device. The invention was developed by Lei Junyu, Yang Guoxing, Zhang Xibao, Chen Shangtao, Wang Kefeng, Xu Qiang, Ruan Shixiang, Ma Shugang, Yang Tong and Luo Zhenghong.
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