ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,116, issued on May 27, was assigned to WATTTRON GmbH (Freital, Germany).

"Sealing element" was invented by Marcus Stein (Freital, Germany) and Sascha Bach (Freital, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the invention relate to a sealing element for thermally joining thermoplastic materials along a bent or cambered contour, including a plurality of heating elements which each has a flat carrier substrate with a front and a rear side, at least one heating circuit being disposed on the front side, and at least one contour element which has a bent or cambered contour, the heating elements being disposed on the contour ele...