US Patent Issued to Universal Display on June 23 for "Organic electroluminescent materials and devices" (Pennsylvania, New Jersey Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,500, issued on June 23, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Derek Ian Wozniak (Bensalem, Pa.), Zhiqiang Ji (Chalfont, Pa.), James Fiordeliso (Yardley, Pa.), Wei-Chun Shih (Lawrenceville, N.J.), Pierre-Luc T. Boudreault (Pennington, N.J.), Walter Yeager (Yardley, Pa.), Bert Alleyne (Newtown, Pa.), Henry Carl Herbol (Ewing, N.J.), Eric A. Margulies (Philadelphia) and Rasha Hamze (Philadelphia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound including a first ligand LA of Formula I,is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X1, X2, and X3 ...