ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,764, issued on Sept. 2, was assigned to BOMBARDIER RECREATIONAL PRODUCTS INC. (Valcourt, Canada).

"Controllable differential system and vehicle having the controllable differential system" was invented by Walid Ben Attouch (Sherbrooke, Canada), Francois-Charles Dumas (Saint-Denis-de-Brompton, Canada) and Patrick Leroux (Granby, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle has a frame; a motor connected to the frame; a rear drivetrain connected to the frame; a front drivetrain connected to the frame and having a lockable front differential; a manual override control; and a controller operatively connected to the lockable front diff...