ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,477,980, issued on Nov. 25, was assigned to Tritana Intellectual Property Ltd. (Saskatoon, Canada).

"Combine harvester with a guide between a weed seed destruction section and a straw spreading section" was invented by Dean Mayerle (Saskatoon, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. Thus the discarded seeds rebound back...