ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,217,947, issued on Feb. 4, was assigned to Fraunhofer-Gesellschaft zur forderung der angewandten Forschung e.V. (Munich).

"Method and device for producing uniform films on moving substrates and films produced in this way" was invented by Michael Vergohl (Cremlingen, Germany), Daniel Rademacher (Braunschweig, Germany) and Tobias Zickenrott (Braunschweig, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to the deposition of optical precision films with high uniformity, precision, particle freedom and low absorption on the substrate. For this purpose, a method and a device are proposed. The approach is the use of target materials...