ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,398, issued on June 30, was assigned to POLLUX TECHNOLOGIES LLC (East Brunswick, N.J.).

"Filter leak detection apparatus" was invented by Sid Chaudhuri (East Brunswick, N.J.) and Gavin E Trutzenbach (Cream Ridge, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an air filter leak detection system for use in air circulation systems. The system comprises a control device, an actuator, and at least one sensor capable of measuring airflow velocity or air pressure. The control device periodically executes a computer program stored in its memory to activate the actuator to sequentially position the sensor at multiple lo...