ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,902, issued on July 14, was assigned to Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).

"Systems and methods for detecting refrigerant leaks in heating, ventilating, and air conditioning (HVAC) systems" was invented by Steven A. Tice (Wichita, Kan.) and William F. McQuade (New Cumberland, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a refrigerant leak detection and mitigation system of a heating, ventilating, and air conditioning (HVAC) unit. The refrigerant leak detection and mitigation system includes a controller configured to determine a plurality of parameters correlated to refrigerant le...