ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,470,115, issued on Nov. 11, was assigned to Hedrich GmbH (Ehringshausen, Germany).

"Multiple temperature-control process for workpieces by means of a triplex furnace" was invented by Karl Bauch (Asslar, Germany), Gerhard Karl Mais (Limburg, Germany) and Wofgang Weiss (Pforring, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Multiple temperature-control process for stators (7) and rotors of electric motors and components consisting of materials with different magnetic properties by means of a triplex furnace (1) for the quick, efficient, and uniform heating-up of preferably tubular components such as stators (7), wherein the magnetic parts of a c...