ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,457, issued on March 18, was assigned to CARRIER Corp. (Palm Beach Gardens, Fla.).

"Environmental enclosure for a transport gas sensor" was invented by Michael J. Birnkrant (Wethersfield, Conn.) and Marcin Piech (East Hampton, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerant detection assembly operable to detect refrigerant mixed with air includes a housing having an internal cavity fluidly connected with an ambient atmosphere surrounding the housing via an opening. A subassembly mounted within the internal cavity includes an air chamber fluidly connected with the internal cavity, a non-dispersive infrared sensor operably coupled ...