ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,741,254, issued on Sept. 22, was assigned to HACH COMPANY (Loveland, Colo.).
"Asymmetrical magnetic stir bar" was invented by Brian Dreiling (Windsor, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic stir bar is described that includes a first portion with an outer perimeter that has a shape in plan view and a center point being a geometric center of the shape. The magnetic stir bar includes a second portion with a magnet that is connected to the first portion. The second portion is arranged so that at least part of the second portion is positioned within the outer perimeter of the first portion and so that a magnetic center point of the...