ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,760, issued on July 14, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Rotary kiln" was invented by Jong Seol Yoon (Daejeon, South Korea), Jun Seok Nho (Daejeon, South Korea), Chang Seok Ryoo (Daejeon, South Korea), Dong Hwan Kim (Daejeon, South Korea), Eun Kyu Seong (Daejeon, South Korea), Myoung Hwan Oh (Daejeon, South Korea) and Young Min Ko (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary kiln comprises: a sintering device provided with a cylindrical rotation tube for mixing an input powder raw material while rotating in a horizontal direction; an external heating device for heating the powder raw material input...