US Patent Issued to VIAVI SOLUTIONS on April 15 for "Security device formed by printing with special effect inks" (California Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,260, issued on April 15, was assigned to VIAVI SOLUTIONS INC. (Chandler, Ariz.).

"Security device formed by printing with special effect inks" was invented by Vladimir P. Raksha (Santa Rosa, Calif.), Paul G. Coombs (Santa Rosa, Calif.) and Charles T. Markantes (Santa Rosa, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A security device is disclosed that has an image formed upon a substrate. The image has a first printed region and a second different printed region both printed with a same ink formulation of field alignable flakes. At least one of the printed regions has optically variable effects. One of the first and second printed regions a...