ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,237, issued on July 14, was assigned to Ten Cate Thiolon B.V. (Nijverdal, Netherlands).

"Artifical turf infill with natural rubber granules" was invented by Salil Sethunath (Nijverdal, Netherlands), Niels Gerhardus Kolkman (Nijverdal, Netherlands), Colin Young (Nijverdal, Netherlands), Michael Rene Vogel (Nijverdal, Netherlands) and Hein Anton Heerink (Nijverdal, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein is a natural rubber based infill for artificial turf having biodegradable granules. The granules have a natural rubber that has been physically but not chemically modified by the addition of a quantity of filler mate...