ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,346, issued on Nov. 3, was assigned to Acaia Corp. (Alhambra, Calif.).

"Coffee grinder apparatus and ion generator therefor" was invented by Rex Poway Tseng (Taipei, Taiwan) and Chien-Chun Han (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A grinder apparatus may include a grinder body, a burr set, and an ion generator. The grinder body may define an intake passage to receive coffee beans therein and an outlet aperture. The burr set may be disposed within the grinder body in fluid communication between the intake passage and the outlet aperture to grind the coffee beans into coffee grounds output at the outlet aperture. The ion genera...