ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,679, issued on Dec. 9, was assigned to Deere & Co. (Moline, Ill.).

"Combine harvester separation system" was invented by Michael T. Meschke (Eldridge, Iowa), Michael L Vandeven (Leclaire, Iowa), Brian Gorge (Colona, Ill.) and Martin Rittershofer (Zweibrucken, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Combine harvesters may include crop processing systems having a grate subassemblies with flaps that, in some instances, are divided into groups that are independently movable and moveable in opposite directions between a fully open position and a fully closed position. Further, each of the grate assemblies may include an actuator that is ope...