US Patent Issued to Solventum Intellectual Properties on Feb. 24 for "Dental mill blank of a porous zirconia material containing oxides of Tb, Er and Cr, process of producing and use thereof" (German Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,203, issued on Feb. 24, was assigned to Solventum Intellectual Properties Co. (Maplewood, Minn.).

"Dental mill blank of a porous zirconia material containing oxides of Tb, Er and Cr, process of producing and use thereof" was invented by Michael Jahns (Gilching, Germany) and Gallus Schechner (Herrsching, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a dental zirconia mill blank comprising a porous zirconia material, the porous zirconia material comprising Zr oxide, Y oxide, optionally Al oxide, Bi oxide, Tb oxide, Er oxide, Cr oxide, the porous zirconia material not comprising Fe oxide calculated as Fe2O3 of ...