ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,339, issued on May 20, was assigned to FIERY LLC (Fremont, Calif.).

"Process color composition for a printer including both the substrate and the ink/toner" was invented by Mario Kuehn (Duisburg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "In printing, the substrate colorant is used for the color management process of images or artwork, printed on white ink/toner covered areas. With the specific inclusion of the substrate colorant, which reduces the amount of white ink/toner printed, a significant extension of the printing color, for substrates with chromatic coloring, or the darkness, for black substrates, is possible."

The patent was f...