ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,598, issued on March 17, was assigned to BRANSON Ultraschall Niederlassung der Emerson Technologies Gmbh & Co. OHG (Dietzenbach, Germany).

"Preheating arrangement for a welding device, a respective welding device as well as a preheating method and a welding method" was invented by Silvio Fuchs (Hasselroth, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preheating arrangement includes a preheating device defining a first plane by a first centerline along a first axis and a second centerline along a second axis perpendicular to the first axis. A first preheating structure is asymmetric with respect to the first and/or the second centerline....