US Patent Issued to Lennox Industries on June 23 for "Diagnostics of HVAC system based on visual and sound signatures" (Texas Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,173, issued on June 23, was assigned to Lennox Industries Inc. (Richardson, Texas).

"Diagnostics of HVAC system based on visual and sound signatures" was invented by Payam Delgoshaei (Addison, Texas), Sridhar Venkatesh (Irving, Texas) and Eric Berg (The Colony, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for heating, ventilation, and air conditioning (HVAC) system diagnostics includes, in response to determining that a triggering event has occurred, entering a filter diagnostics mode. A first instruction is sent to a thermostat to shut down an HVAC system. A user is instructed to locate and remove a filter. The filter is classified...