ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,589, issued on Feb. 17, was assigned to Seoul Viosys Co. Ltd. (Gyeonggi-do, South Korea).
"Lighting device" was invented by Jae Young Choi (Gyeonggi-do, South Korea), Kyu Won Han (Gyeonggi-do, South Korea), Seong Tae Jang (Gyeonggi-do, South Korea), Sang Wook Jung (Gyeonggi-do, South Korea) and Woong Ki Jeong (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting device including at least one first light source configured to emit a visible light through a first light emitting surface, at least one second light source spaced apart from the first light source and configured to emit light having a wavelength for sterilizati...