ALEXANDRIA, Va., July 3 -- United States Patent no. 12,344,781, issued on July 1, was assigned to TAINAN SPINNING Co. LTD. (Tainan City, Taiwan).

"Carbon nanodot-fluorescent polymer composite, and method for preparing and fiber including the same" was invented by Wei-Yu Chen (Tainan, Taiwan), Ya-Yun Ho (Tainan, Taiwan), Cheng-Ho Chen (Tainan, Taiwan), Zong-Han Wu (Tainan, Taiwan), Chia-Yang Wu (Tainan, Taiwan) and Yen-Chou Chen (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing a carbon nanodot-fluorescent polymer composite includes subjecting a reactant and a biological component to a reaction at 260deg C. to 290deg C., so as to obtain the carbon nanodot-fluorescent polyme...