ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,755, issued on Jan. 27, was assigned to Novelis Koblenz GmbH (Koblenz, Germany).

"Aluminium alloy multi-layered brazing sheet material for flux-free brazing" was invented by Bernd Jacoby (Limburg, Germany), Steven Kirkham (Ransbach-Baumbach, Germany), Fabian Ritz (Otzingen, Germany) and Axel Alexander Maria Smeyers (Heist op den Berg, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is an aluminium alloy multi-layered brazing sheet product for brazing in an inert-gas atmosphere without a flux that includes a core layer made of a 3xxx alloy that includes greater than0.2 wt. % Mg, and that provides a covering clad layer that inc...