ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,415, issued on Dec. 16, was assigned to LG CHEM Ltd. (Seoul, South Korea).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a polycyclic compound of Formula 100: where Cy3 and Cy4 are the same as or different from each other, and are each independently one selected from the group consisting of a substituted or unsubstituted aromatic hydrocarbon ring, a substituted or unsubstituted aliphatic hydrocarbon rin...