ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,572, issued on Aug. 26, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).

"Multi-color hot stamp printing system" was invented by Kenneth Bode (Philadelphia), Michael Colella (Southington, Conn.) and Daniela Israel (Glenview, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes moving a multi-color ribbon over a target object. The multi-color ribbon has a lower layer and an upper layer of inks or pigments. The method also includes applying heat and pressure onto the multi-color ribbon to transfer the overlying layers of the inks or pigments to the target object, and removing at least a portion of the lower layer of the ink ...