ALEXANDRIA, Va., June 18 -- United States Patent no. 12,324,541, issued on June 10.

"Coffee grinder having improved accuracy of burr alignment for grinding uniformity" was invented by In Oh Yoo (Siheung-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a coffee grinder having improved accuracy of burr alignment for grinding uniformity. The coffee grinder having improved accuracy of burr alignment for grinding uniformity of the present disclosure comprises: a lower flat burr carrier having a rotary base part rotatably coupled to a grinder body and a lower flat burr part coupled to the rotary base part so as to rotate together with the rotary base part and having a first grinding blad...