ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,878, issued on March 24, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Hsiao-Fan Chen (Lawrence Township, N.J.), Rasha Hamze (Philadelphia), Neil Palmer (Frenchtown, N.J.), Morgan C. MacInnis (Yardley, Pa.), George Fitzgerald (Lambertville, N.J.), Elena Sheina (Langhorne, Pa.), Scott Beers (Flemington, N.J.), Jason Brooks (Philadelphia), Alexey Borisovich Dyatkin (Ambler, Pa.), Suman Layek (Pennington, N.J.) and Jui-Yi Tsai (Newtown, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are organometallic compounds including a ligand LA of a structure of Formula IAlso...