ALEXANDRIA, Va., June 16 -- United States Patent no. 12,653,343, issued on June 16, was assigned to FRYMASTER LLC (New Port Richey, Fla.).

"Convection deep fat fryer" was invented by Jan Claesson (Land O' Lakes, Fla.), Daryl G. Erbs (Tarpon Springs, Fla.) and Douglas S. Jones (New Port Richey, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A deep fat fryer with a vat containing cooking oil for frying food including an integrated circulating pump housing below the oil level connected to a separate heat exchanger wherein the cooking oil is circulated from the cooking vat through the heat exchanger then back into the cooking vat. Circulating pump motor, pump inlet, and pump impeller assembly is mounted wit...