ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,586, issued on Oct. 28, was assigned to CHINA PETROLEUM & CHEMICAL Corp. (Beijing) and BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CHINA PETROLEUM & CHEMICAL Corp. (Beijing).

"Diimine metal complex, preparation method therefor, and application thereof" was invented by Rong Gao (Beijing), Jingjing Lai (Beijing), Zifang Guo (Beijing), Qingqiang Gou (Beijing), Junling Zhou (Beijing), Dongbing Liu (Beijing), Xiaofan Zhang (Beijing), Jie Lin (Beijing), Xinyang Li (Beijing), Junhui Zhang (Beijing), Yuanning Gu (Beijing), Yan Li (Beijing), Jingyan An (Beijing), Jie Fu (Beijing) and Yanhong Wan (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A d...