ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,324, issued on March 3, was assigned to NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY (Nanjing, China).

"Inverted microscopic imaging system with programmable LED array for multi-contrast label-free imaging" was invented by Qian Chen (Nanjing, China), Chao Zuo (Nanjing, China), Jiasong Sun (Nanjing, China), Shijie Feng (Nanjing, China), Yuzhen Zhang (Nanjing, China) and Guohua Gu (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention discloses a miniaturized, low-cost, multi-contrast label-free microscopic imaging system. The imaging system is based on an inverted microscopic structure, a highly integrated optical system is desi...