ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,014, issued on May 12, was assigned to;Zhejiang Normal University (Jinhua, China).

"Fluorescent material containing thiophene sulfone-olefin structural unit and preparation method thereof" was invented by Xiaolei Huang (Jinhua, China), Bingbin Yang (Jinhua, China), Yaoyao Lu (Jinhua, China), Yaolin Xia (Jinhua, China) and Xiaoyu Ma (Jinhua, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluorescent material containing a thiophene sulfone-olefin structural unit and a preparation method thereof are provided. In the preparation method, the thiophene sulfone compounds, olefins, oxidants and additives are dissolved in the tetrahydrofuran solvent, ...