US Patent Issued to LG CHEM on Feb. 24 for "Heterocyclic compound and organic light emitting device comprising same" (South Korean Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,966, issued on Feb. 24, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Heterocyclic compound and organic light emitting device comprising same" was invented by Kyunghee Kim (Daejeon, South Korea), Wanpyo Hong (Daejeon, South Korea), Sujeong Geum (Daejeon, South Korea), Moung Gon Kim (Daejeon, South Korea) and Seonwoo Kim (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a heterocyclic compound of Chemical Formula 1: a is a substituted or unsubstituted tetracyclic or higher aromatic or heteroaromatic ring, and b is a benzene or naphthalene ring; at least two of G1 to G3 are a group of Chemical Formula A, and any re...