The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2021
Filed:
Apr. 25, 2019
Ivoclar Vivadent Ag, Schaan, LI;
Christian Ritzberger, Grabs, CH;
Frank Rothbrust, Frastanz, AT;
Marcel Schweiger, Chur, CH;
Nicolas Courtois, Villeurbanne, FR;
Jérôme Chevalier, Rilieux-la Pape, FR;
Helen Reveron, Lyons, FR;
Wolfram Höland, Schaan, LI;
Volker Rheinberger, Vaduz, LI;
Ivoclar Vivadent AG, Schaan, LI;
Abstract
The present invention is directed to a porous pre-densified CeO-stabilized ZrOceramic having a density of 50.0 to 95.0%, relative to the theoretical density of zirconia, and an open porosity of 5 to 50% as well as to a densified CeO-stabilized ZrOceramic having a density of 97.0 to 100.0%, relative to the theoretical density of zirconia, and wherein the grains of the ceramic have an average grain size of 50 to 1000 nm, methods for the preparation of the pre-densified and densified ceramics and their use for the manufacture of dental restorations.