ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,560, issued on Nov. 11, was assigned to Solventum Intellectual Properties Co. (Maplewood, Minn.).
"Process for producing a dental zirconia article with a fast sintering process" was invented by Holger Hauptmann (Sindelsdorf, Germany), Martin Goetzinger (Pflugdorf, Germany) and Sybille A. Schmittner (Inning, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a process of sintering a dental zirconia restoration, the process comprising a first step of heat-treating a porous dental zirconia article with a heating rate of at least 3 K/sec until a temperature level of 75 to 90% of the final sintering temperature is achieved to...