ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,968, issued on April 22, was assigned to Precision Planting LLC (Tremont, Ill.).

"Agricultural sampling system and related methods" was invented by Todd Swanson (Morton, Ill.), Dale Koch (Tremont, Ill.), Kent Levy (Morton, Ill.), Matthew O'Neall (Ellsworth, Ill.) and Reid Harman (Trivoli, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coulter assembly for collecting soil samples from an agricultural field in one embodiment comprises an annular collection blade configured for penetrating soil to capture a sample, an annular cam ring configured for stationary mounting to a frame of an agricultural vehicle and comprising a cam track, a blade hub ...