ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,995, issued on Aug. 26, was assigned to Deutsches Zentrum fur Luft- und Raumfahrt e.V. (Stuttgart, Germany).

"Measuring device for determining a distribution of a heat transfer medium and method for determining a distribution of a heat transfer medium" was invented by Austin Franke (Stuttgart, Germany), Anja Raab (Stuttgart, Germany) and Alexander Hirt (Villingen-Schwenningen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A measuring device for determining a distribution of a heat transfer medium on an inner wall of a shaftless container which rotates when used to heat the heat transfer medium with concentrated solar radiation in a solar th...