ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,936, issued on May 5, was assigned to Peridot Print LLC (Palo Alto, Calif.).

"Conductive traces" was invented by Elizabeth Ann Galati (Palo Alto, Calif.), John Samuel Dilip Jangam (Palo Alto, Calif.), Thomas Craig Anthony (Palo Alto, Calif.), Aja Pariante Hartman (Palo Alto, Calif.) and Kristopher J. Erickson (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a conductive trace precursor composition comprising a metal salt; 3 to 15 weight % of a reducing solvent selected from a lactam and/or a polyol, and water. Where the reducing solvent is 2-pyrrolidinone, the 2-pyrrolidinone is not present in an amou...