ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,720, issued on June 23, was assigned to WIELAND-WERKE AG (Ulm, Germany).

"Copper alloy, semifinished product and electrical connecting element comprising a copper alloy" was invented by Patrick Schober (Heidenheim a.d. Brenz, Germany), Julia Heilemann (Ulm, Germany), Timo Allmendinger (Blaustein, Germany) and Matthias Nohrer (Eisenstadt, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "The composition of a copper alloy is as follows: Sn: 3.0-6.5%; Ni: 0.30-0.70%; P: 0.15-0.40%; S: 0.10-0.40%; Zn: optionally up to 0.20%; Fe: optionally up to 0.50%; Mn: optionally up to 0.50%; Pb: optionally up to 0.25%, with the balance being copper and unavoid...