US Patent Issued to BEIJING SUMMER SPROUT TECHNOLOGY on Sept. 30 for "Phosphorescent organometallic complex and device thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,433,149, issued on Sept. 30, was assigned to BEIJING SUMMER SPROUT TECHNOLOGY Co. LTD. (Beijing).

"Phosphorescent organometallic complex and device thereof" was invented by Zhen Wang (Beijing), Wei Cai (Beijing), Chi Yuen Raymond Kwong (Beijing) and Chuanjun Xia (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a phosphorescent organometallic complex and a device thereof. The organometallic complex contains a ligand La having a structure of Formula 1 and a ligand Lb having a structure of Formula 2. Such metal complexes can be used as light-emitting materials in electroluminescent devices. These novel compounds in organic electrolumin...