ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,861, issued on Feb. 10, was assigned to SCHOTT AG (Mainz, Germany).

"Method for processing brittle-hard materials" was invented by Bernhard Hunzinger (Wackenheim, Germany), Ali Al-Zuhairi (Russelsheim, Germany), Andreas Ortner (Gau-Algesheim, Germany), Andreas Koglbauer (Trebur, Germany) and Imke Adrian (Russelsheim, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for the separative processing of brittle-hard materials is provided. The method includes irradiating a surface of a workpiece made of brittle-hard material with a laser beam having a wavelength sufficient so that light of the laser beam is absorbed at the surface and so tha...