ALEXANDRIA, Va., June 4 -- United States Patent no. 12,319,641, issued on June 3, was assigned to SNBIOSCIENCE INC. (Seoul, South Korea).

"Lobaric acid derivative having PTP-1B inhibitory activity, preparation method therefor and use thereof" was invented by Joung Han Yim (Gyeonggi-do, South Korea), Il Chan Kim (Gyeonggi-do, South Korea), Se Jong Han (Gyeonggi-do, South Korea), Tai Kyoung Kim (Incheon, South Korea), Dong Gyu Jo (Gyeonggi-do, South Korea), Hyun Cheol Oh (Jeollabuk-do, South Korea), Ha Ju Park (Gyeonggi-do, South Korea), Seul Ki Min (Incheon, South Korea), Sung Jin Kim (Incheon, South Korea), Pil Sung Kang (Incheon, South Korea), Min Ju Kim (Incheon, South Korea), Jung Eun Kim (Incheon, South Korea), Kyung Hee Kim (Incheon, ...