ALEXANDRIA, Va., March 5 -- United States Patent no. 12,241,648, issued on March 4.
"Non-invasive temperature-based diagnostic method" was invented by Robert J. Mowris (Olympic Valley, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A Non-invasive Temperature-based Diagnostic (NTD) method for evaluating Air Conditioning (AC) system faults based on Return-air Drybulb Temperature (RDT), Return-air Wetbulb Temperature (RWT), Supply-air Drybulb Temperature (SDT), Suction Temperature (ST), Liquid Temperature (LT), Outdoor-Air Temperature (OAT), Delta Temperature Split (DTS) equal to Actual Temperature Split (ATS) minus Required Temperature Split (RTS), and Liquid Over Ambient Temperature (LOA) equal to LT m...