US Patent Issued to Universal Display on March 17 for "Organic electroluminescent materials and devices" (Pennsylvania, New Jersey Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,848, issued on March 17, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Alexey Borisovich Dyatkin (Ambler, Pa.), Elena Sheina (Langhorne, Pa.), Wei-Chun Shih (Lawrenceville, N.J.), Pierre-Luc T. Boudreault (Pennington, N.J.), Jui-Yi Tsai (Newtown, Pa.) and Zhiqiang Ji (Chalfont, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound having a structure of Formula I,is provided. In Formula I, each of moieties B, C, and D is a ring or multicyclic ring system; each of X1, X2, X3, X4, X5, Y1, Z1, Z2, Z3, Z4, and Z5 is C or N; each of K1, K2, and K3 is a direct bond, O, or ...