ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,469, issued on May 27, was assigned to SCHOTT AG (Mainz, Germany).

"Methods and devices for introducing separation lines into transparent brittle fracturing materials" was invented by Andreas Ortner (Gau-Algesheim, Germany), Clemens Kunisch (Arnsheim, Germany), Frank-Thomas Lentes (Bingen, Germany), Jens Ulrich Thomas (Mainz, Germany), Kurt Nattermann (Ockenheim, Germany) and Michael Kluge (Offenbach am Main, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing a workpiece for separation is provided that includes providing a workpiece that is transparent for light of a pulsed laser beam, splitting the laser beam into two par...