US Patent Issued to Dentsply Sirona on March 18 for "Method for producing a multi-layer blank with a through-hole" (German Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,277, issued on March 18, was assigned to Dentsply Sirona Inc. (York, Pa.).

"Method for producing a multi-layer blank with a through-hole" was invented by Stefan Fecher (Johannesberg, Germany), Lothar Volkl (Goldbach, Germany), Sven Giese (Hanau, Germany), Tobias Rosch (Reichenberg, Germany) and Andreas Gebhardt (Langenselbold, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for forming a multi-layer blank of a ceramic material including the steps of: providing a mold that includes at least one side wall surrounding a lower press plunger to form a cavity therebetween, wherein the lower press plunger has a movable pin; filling into th...