ALEXANDRIA, Va., July 21 -- United States Patent no. 12,690,381, issued on July 21, was assigned to SICHUAN AG-RAY NEW MATERIALS Co. LTD (Meishan, China).

"Organometallic compound and application thereof" was invented by Liangliang Yan (Foshan, China), Shaofu Chen (Foshan, China), Lei Dai (Foshan, China) and Lifei Cai (Foshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an organometallic compound and application thereof. The organometallic compound has a general formula of Ir(La)(Lb)(Lc), where La is a structure represented by Formula (1), and Lb is a structure represented by Formula (2). The compound provided by the present invention has the advantages of high optic...