ALEXANDRIA, Va., June 17 -- United States Patent no. 12,310,524, issued on May 27, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Coffee extraction apparatus" was invented by Wonkyu Lee (Seoul, South Korea), Jungwon Lee (Seoul, South Korea), Seoyoun Kim (Seoul, South Korea) and Jongkwan Choi (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coffee extraction apparatus includes: a grinder grinding whole beans into coffee powder having a preset size or less and discharging the coffee powder, a grinder inlet defined at a first side of the grinder to introduce the whole beans to the grinder, a grinder outlet defined at a second side of the grinder and discharging the coffee powder,...