ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,779,780, issued on Nov. 3.

"Opto electro heating device having controllable array of heating elements" was invented by Antonio St. Clair Lloyd Williams (Concord, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An opto electro heating device includes a two-dimensional array of heater elements. In one example, vertical and horizontal spacing of the elements is on the order of 600 dots per inch. As with thermal printheads, the opto electro heater is designed to reduce thermal crosstalk thereby reducing the impact of neighboring heating elements affecting the temperature profile of its neighbor. The opto electro heater also operates as a thermal prehea...