ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,509, issued on July 8, was assigned to Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).
"Microchannel heat exchanger" was invented by Xingshun Gao (York, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat exchanger for a heating, ventilation, and/or air conditioning (HVAC) system includes a header having a longitudinal axis, a first plurality of microchannel tubes coupled to the header, where each microchannel tube of the first plurality of microchannel tubes has a first width, and a second plurality of microchannel tubes coupled to the header, where each microchannel tube of the second plurality of microchannel tubes has a sec...