ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,255, issued on March 3.

"Object detection alarm system" was invented by Jaime Lee Light (Statesville, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object detection alarm system is provided for monitoring a protected area within a facility to ensure that it remains free of objects in accordance with federal, state, or local regulations or facility protocol. The system includes a housing supporting an ultrasonic sensor, a microcontroller, an alarm and a clock module. The sensor calculates time differentials between emitted and detected sonar signals and generates signals representing the calculated time differential values or a calculated di...