ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,108, issued on Sept. 1, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing), Zhejiang University (Hangzhou, China) and SHANGHAI RESEARCH INSTITUTE OF CHEMICAL INDUSTRY Co. LTD. (Shanghai).

"Olefin polymerization method and system" was invented by Jingdai Wang (Hangzhou, China), Jingyuan Sun (Hangzhou, China), Zhengliang Huang (Hangzhou, China), Yongrong Yang (Hangzhou, China), Guodong Han (Tianjin, China), Wenqing Wu (Tianjin, China), Binbo Jiang (Hangzhou, China), Xiaofei Wang (Tianjin, China), Yao Yang (Hangzhou, China), Xiaofeng Ye (Shanghai) and Zuwei Liao (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present applica...