ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,717, issued on Feb. 17, was assigned to CONSIGLIO NAZIONALE DELLE RICERCHE (Rome).

"Lithography-based process for the production of transparent ceramic bodies with at least two zones of different composition and transparent ceramic bodies thus obtained" was invented by Valentina Biasini (Cesena, Italy), Jan Hostasa (Faenza, Italy), Laura Esposito (Faenza, Italy), Andreana Piancastelli (Faenza, Italy), Guido Toci (Florence, Italy), Martin Schwentenwein (Zemendorf, Austria) and Dominik Philipp Brouczek (Schwechat, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "It is described a process for producing transparent ceramic bodies with at least two...