ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,219, issued on Sept. 22, was assigned to Primetals Technologies Germany GmbH (Germany).

"Making an allowance for state-dependent density when solving a heat conduction equation" was invented by Thomas Matschullat (Eckental, Germany) and Klaus Weinzierl (Nuremberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "At a treatment time, a treatment device is intended to act, at least substantially in the thickness direction, on a planar, hot item of metal rolling stock. At least for a period before the treatment time, the development over time of a thermal state (Z) of the rolling stock is modelled by means of a model of the rolling stock by iter...