ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,538, issued on June 24, was assigned to BASF AGRO B.V. (Arnhem, Netherlands).

"Method for controlling rats and mice with cholecalciferol baits" was invented by Thorsten Storck (Dossenheim, Germany) and Sharon Hughes (Widnes, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for controlling undesired rats and mice comprising the steps of placing on a first day cholecalciferol baits at bait points in an environment to be protected and leaving the baits for a baiting time at the bait points, where the baiting time is less than 10 days for the control of mice and less than 15 days for the control of r...