ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,641, issued on March 4, was assigned to WATTTRON GmbH (Freital, Germany).
"Sealing method" 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 connecting thermoplastic materials along a bent or curved contour, including a plurality of flat support substrates with a front face and a rear face, the substrates having at least one heating element on the front face, and including a contoured element which has a front face in the shape of the contour to be sealed, wherein the rear face of the support substrate...