ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,898, issued on April 15, was assigned to IntoCell Inc. (Daejeon, South Korea).

"Substituted benzodiazepines as antibody-drug conjugates" was invented by Taekyo Park (Daejeon, South Korea), Sung Ho Woo (Daejeon, South Korea), Sunyoung Kim (Daejeon, South Korea), Suho Park (Daejeon, South Korea), Jongun Cho (Daejeon, South Korea), Doohwan Jung (Daejeon, South Korea), Donghoon Seo (Daejeon, South Korea), Jaeho Lee (Daejeon, South Korea), Sangkwang Lee (Daejeon, South Korea), Sanghyeon Yun (Daejeon, South Korea), Hyang Sook Lee (Daejeon, South Korea), Okku Park (Daejeon, South Korea), Beomseok Seo (Daejeon, South Korea), Sena Kim (Daejeon, South Korea) and Minah Seol (Daejeon, South Ko...