US Patent Issued to LG CHEM on Oct. 21 for "Heterocyclic compound and organic light-emitting device comprising same" (South Korean Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,370, issued on Oct. 21, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Heterocyclic compound and organic light-emitting device comprising same" was invented by Jung Min Yoon (Daejeon, South Korea), Sung Kil Hong (Daejeon, South Korea), Dong Uk Heo (Daejeon, South Korea), Miyeon Han (Daejeon, South Korea), Jae Tak Lee (Daejeon, South Korea) and Heekyung Yun (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a heterocyclic compound of Chemical Formula 1: wherein: A1 is Chemical Formula 1-1: Y1 and Y2 are hydrogen or deuterium, or directly bonded to each other, or linked through -C(R31)(R32)-, -Si(R33)(R34)-, -N(R35)-...