US Patent Issued to Universal Display on Nov. 4 for "Organic host materials for electroluminescent devices" (New Jersey, Pennsylvania Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,946, issued on Nov. 4, was assigned to Universal Display Corp. (Ewing, N.J.).

"Organic host materials for electroluminescent devices" was invented by Bin Ma (Ewing, N.J.), Vadim Adamovich (Yardley, Pa.) and Alan Deangelis (Pennington, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compound of Formula Iis disclosed where RA, RB, RC, and RD each independently represent mono to a maximum possible number of substitutions, or no substitution; where two of X1 to X4 are carbon, and the other two are nitrogen; where L is an organic linker; where R, RA, RB, RC, and RD are each independently a hydrogen or a substituent selected from the group consisting...