US Patent Issued to Universal Display on Sept. 30 for "Organic electroluminescent materials and devices" (Pennsylvania, Delaware, New Jersey Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,599, issued on Sept. 30, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic electroluminescent materials and devices" was invented by Tyler Fleetham (Yardley, Pa.), Joseph A. Macor (Morrisville, Pa.), Neil Palmer (Frenchtown, N.J.), Elena Sheina (Langhorne, Pa.), Mahesh Paudyal (Middletown, Del.) and Muazzam Idris (Wilmington, Del.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are compounds having the structure of Formula I:wherein rings A, B, and D are each independently a 5-membered or 6-membered carbocyclic or heterocyclic ring; X1-X9 are each independently C or N; Y1 is selected from the group consisting of a direct bond,...