ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,299, issued on May 27, was assigned to A. O. Smith Corp. (Milwaukee).

"Water heater with reserve capacity, and method of operating the same" was invented by Brian T. Branecky (Oconomowoc, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating a water heater, the method including determining a predicted variation of a hot water consumption rate variable over a future time period and calculating a total required operating time of the water heater over that time period. The method further includes determining multiple possible operating profiles of the water heater that provide the total required operating time, and calculating a min...