ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,651, issued on March 31.
"Sobriety check locking key case" was invented by Kyle Heaser (Lino Lakes, Minn.) and Aspen Vetter (Glenwood Springs, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle operation sobriety control unit functional for preventing operation of a vehicle by an intoxicated individual. The unit includes a module and a key case, whereby a vehicle start key retained within the key case is available to start a vehicle only when the module detects and measures a blood intoxicant concentration level below a predefined threshold blood intoxicant concentration level. The sobriety control unit has a shape that imitates a commo...