ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,111, issued on May 20, was assigned to LG CHEM Ltd. (Seoul, South Korea).
"Extruder" was invented by Gyu Il Lee (Daejeon, South Korea), Byeong Joon Jeong (Daejeon, South Korea), Woo Seon Choi (Daejeon, South Korea), Young Hyun Choi (Daejeon, South Korea) and Eung Seob Yeom (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "An extruder configured to extrude a solid raw material containing moisture includes a barrel, a hopper, a discharge port, and a slot portion, through which the inside and outside of the barrel communicate each other, is provided between the discharge port and the hopper; a screw, and a heater mounted on the barre...