ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,331, issued on June 24, was assigned to LG Chem Ltd. (Seoul, South Korea).
"Classification system using fluidized bed" was invented by Sung Woo Jeong (Daejeon, South Korea) and In Yong Jeong (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A classification system using a fluidized bed according to the present invention includes: a fluidized bed classifier supplied with powder containing particles of different sizes, which entrains the powder into the fluidized gas, and then discharges coarse powder through a coarse powder outlet positioned in its lower portion. The system further includes a cyclone communicating with an upper por...