ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,854, issued on July 15, was assigned to Korea Institute of Machinery & Materials (Daejeon, South Korea).

"Method and apparatus for converting hydrocarbon-based material into acetylene or ethylene" was invented by Dae-hoon Lee (Daejeon, South Korea), Duy Khoe Dinh (Daejeon, South Korea), Hong Jae Kang (Daejeon, South Korea), Kwan-Tae Kim (Daejeon, South Korea), Hohyun Song (Daejeon, South Korea), You-Na Kim (Daejeon, South Korea), Heesoo Lee (Daejeon, South Korea) and Younghoon Song (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of converting a hydrocarbon-based material into acetylene or ethylene according to an embodi...