ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,533, issued on April 21.

"HVAC probe diagnostic gauge" was invented by Paul Murphy (Fresno, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure allows technicians to remove contaminants during the installation and maintenance process, preventing refrigerant loss and contamination entry into the HVAC system. Ingenious and practical this unprecedented device is uniquely designed with durable, high-quality materials to ensure long-term sustainability. This product offers removable/replaceable parts for speedy maintenance and was engineered by an HVAC technician, possessing years of experience. A gauge device comprising an intake stem ...