ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,736, issued on April 15, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Compound and organic light emitting device comprising the same" was invented by Min Woo Jung (Daejeon, South Korea), Dong Hoon Lee (Daejeon, South Korea), Boon Jae Jang (Daejeon, South Korea), Wanpyo Hong (Daejeon, South Korea), Sang Duk Suh (Daejeon, South Korea), Jungha Lee (Daejeon, South Korea), Su Jin Han (Daejeon, South Korea), Seulchan Park (Daejeon, South Korea) and Sunghyun Hwang (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a compound of Chemical Formula 1: wherein: each X is independently N or CH, provided that at least one X is ...