ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,263, issued on May 20, was assigned to Novelis Koblenz GmbH (Koblenz, Germany).
"CLAD 2XXX-series aerospace product" was invented by Bernd Jacoby (Limburg, Germany), Achim Burger (Hohr-Grenzhausen, Germany), Sabine Maria Spangel (Koblenz, Germany) and Philippe Meyer (Agnetz, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a rolled composite aerospace product comprising a 2XXX-series core layer and an Al-Mg alloy clad layer coupled to at least one surface of the 2XXX-series core layer, wherein the Al-Mg alloy is a 5XXX-series aluminium alloy comprising 0.4% to 4.8% Mg, and preferably 0.7% to 4.5% Mg."
The patent was fi...