ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,408, issued on April 15, was assigned to Jackson WWS Inc. (Barbourville, Ky.).

"Warewashing machine with drain water tempering system" was invented by Brian Gambrel (Corbin, Ky.) and Paul Wells (Corbin, Ky.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A warewashing machine including a housing defining an internal volume, a heat source for heating the water from a first water source, a hot water tank for receiving water heated by the heat source, an agitation unit for applying water to the dishware, and a drain water tempering system having a drain water fitting defining an interior chamber, a drain water inlet port, a drain water outlet port, a coo...