ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,834, issued on June 2, was assigned to Marazzi Group SRL (Sassuolo, Italy).

"Method for producing ceramic tiles" was invented by Lorenzo Valeriani (Sassuolo, Italy) and Lorenzo Corradini (Sassuolo, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing ceramic tiles, comprising the steps of providing a ceramic mixture, forming a raw tile with a body having an upper surface based on said mixture, and firing said raw tile to produce said ceramic tile, wherein the method comprises a step of producing a relief structure on said upper surface and wherein said structure is produced after said forming step and before said firing step."...