ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,506, issued on Nov. 18, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).
"Jet mill" was invented by Oliver Pikhard (Ludwigshafen, Germany) and Christian Riemann (Ludwigshafen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a jet mill comprising a milling chamber with a longitudinal axis, an inlet at one end of the axis and an outlet at the opposite end of the axis, the milling chamber comprising a multitude of pins arranged in the free flow cross-section of the milling chamber, wherein the pins are arranged in at least two planes perpendicular to the longitudinal axis, the planes being distant to each other ...