ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,800, issued on Dec. 2, was assigned to RTX Corp. (Farmington, Conn.).

"Powerplant with integrated heat pipe" was invented by Lawrence A. Binek (Glastonbury, Conn.), Yoel Bugin (Port St Lucie, Fla.) and Edward L. Hieb (Aubrey, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus is provided for a powerplant. The apparatus includes a heat pipe extending axially along an axis from a first end of the heat pipe to a second end of the heat pipe. The heat pipe extends circumferentially around the axis. The heat pipe includes an evaporator region, a condenser region and a plurality of fluid passages. The evaporator region is disposed at the seco...