ALEXANDRIA, Va., July 23 -- United States Patent no. 12,369,432, issued on July 22, was assigned to FOCUS LIGHTINGS TECH Co. LTD. (Suzhou, China).

"LED epitaxial structure and preparation method and application thereof" was invented by Guochang Li (Jiangsu, China), Zhijun Xu (Jiangsu, China), Han Jiang (Jiangsu, China), Hu Cheng (Jiangsu, China), Yangyang Xu (Jiangsu, China), Wenjun Wang (Jiangsu, China) and Shuwei Yuan (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to an LED epitaxial structure and the preparation method and application thereof. The LED epitaxial structure comprises a first multiple-quantum-well light-emitting layer and a second multiple-quant...