ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,378, issued on May 6, was assigned to hubergroup Deutschland GmbH (Kirchheim-Heimstetten, Germany).
"Method for determining the composition of a multi-layer system showing a predetermined colour flip-flop effect" was invented by Sylvia Klausnitzer (Bruckmuehl, Germany), Taner Bicer (Grafing, Germany), Lutz Frischmann (Ismaning, Germany) and Ralf Buescher (Lohmar, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for determining the composition of a multi-layer system showing a predetermined colour flip-flop effect, wherein the multi-layer system comprises from bottom to top a) a substrate, b) at least o...