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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.:

US 12193899 B1

PDFFull Text
Date of Patent:
Jan. 14, 2025

Filed:

Aug. 05, 2020

Method of manufacturing a zirconium dioxide green body with color and translucency gradients

Applicant:

Vita Zahnfabrik H. Rauter Gmbh & Co. KG, Bad Säckingen, DE;

Inventors:

Michael Gödiker, Bad Säkingen, DE;

Eva Kolb, Bad Säkingen, DE;

Christian Strasser, Bad Säkingen, DE;

Assignee:

Vita Zahnfabrik H. Rauter GmbH & Co. KG, Bad Säkingen, DE;

Attorney:

Dority & Manning, P.A.

Primary Examiner:

Timothy Kennedy

Int. Cl.
CPC ...
A61C 13/00 (2006.01); A61K 6/818 (2020.01); A61K 6/822 (2020.01); A61K 6/824 (2020.01); B28B 1/00 (2006.01); B28B 3/00 (2006.01); B28B 3/02 (2006.01); B28B 11/24 (2006.01); C04B 35/488 (2006.01); C04B 35/64 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
A61C 13/0022 (2013.01); A61K 6/818 (2020.01); A61K 6/822 (2020.01); A61K 6/824 (2020.01); B28B 1/008 (2013.01); B28B 3/003 (2013.01); B28B 3/02 (2013.01); B28B 11/243 (2013.01); C04B 35/4885 (2013.01); C04B 35/64 (2013.01); C04B 35/6455 (2013.01); A61C 2201/002 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3272 (2013.01); C04B 2235/3277 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/604 (2013.01); C04B 2235/608 (2013.01); C04B 2235/75 (2013.01); C04B 2235/77 (2013.01); C04B 2235/786 (2013.01); C04B 2235/9661 (2013.01);
Abstract

The invention relates to a method of manufacturing a ceramic molding, comprising the following steps: a) providing three or more ceramic powder layers that are arranged in layers, one on top of the other, to form a compression-molded element and sintering the compression-molded element obtained in step b) to form a ceramic molding, characterized in that the ceramic powder layers have different compositions, each ceramic powder layer comprising a mixture of at least two different base powders and each base powder containing at least 80 wt. % ZrOand at least 0.02 wt. % AlO, each weight amount being relative to the total weight of the constituents of the base powder.

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