ALEXANDRIA, Va., May 19 -- United States Patent no. 12,635,409, issued on May 19, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Lichang Zeng (Lawrenceville, N.J.), Suman Layek (Lawrenceville, N.J.), Pierre-Luc T. Boudreault (Pennington, N.J.), Zeinab Elshenawy (Holland, Pa.), Gregg Kottas (Ewing, N.J.), Alexey Borisovich Dyatkin (Ambler, Pa.), Scott Joseph (Ewing, N.J.), Vadim Adamovich (Yardley, Pa.), Chuanjun Xia (Lawrenceville, N.J.), Ting-Chih Wang (Lawrenceville, N.J.) and Walter Yeager (Yardley, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition of materials including a first compound having a structure according ...