US Patent Issued to LG Chem on Sept. 9 for "Fluorene derivative and organic light emitting device comprising same" (South Korean Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,151, issued on Sept. 9, was assigned to LG Chem Ltd. (Seoul, South Korea).

"Fluorene derivative and organic light emitting device comprising same" was invented by Miyeon Han (Daejeon, South Korea), Dong Hoon Lee (Daejeon, South Korea), Jungoh Huh (Daejeon, South Korea), Boonjae Jang (Daejeon, South Korea), Dong Uk Heo (Daejeon, South Korea), Junghoon Yang (Daejeon, South Korea) and Heekyung Yun (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluorene derivative of any of Chemical Formula 1-1 to Chemical Formula 1-3: wherein: Ar1 and Ar3 are hydrogen; L2 and L4 each independently is a direct bond, or a substituted or unsubstit...