Patents by Inventor Grit Kindler

Grit Kindler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11253436
    Abstract: A method of making a monolithic dental restoration. The method includes the steps of providing a monolithic precursor of a dental restoration and firing the monolithic dental restoration precursor to provide the monolithic dental restoration. The zirconia material of both the dental restoration precursor as well as the dental restoration has a relative density of greater than 98% of the theoretic density of the zirconia material. The invention helps providing a color of a non-glazed dental restoration which resembles the color of a glazed dental restoration.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 22, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Andreas Herrmann, Michael Jahns, Rainer K. Dittmann, Grit Kindler, Dajana Maria Anna Zimmermann
  • Patent number: 10898302
    Abstract: The invention relates to a porous multi-layered coloured zirconia dental mill blank comprising a bottom layer B having the composition COMP-B which comprises ceramic components CER-COMP-B, colouring components COL-COMP-B and stabilizing components STAB-COMP-B, a top layer E having the composition COMP-E which comprises ceramic components CER-COMP-E, colouring components COL-COMP-E stabilizing components STAB-COMP-E, at least one intermediate layer Ex having the composition COMP-E of top layer E, at least one intermediate layer Bx having the composition COMP-B of bottom layer B, x being an integer and indicating the number of intermediate layers, wherein the layers with compositions COMP-B and COMP-E are arranged in alternating order, and wherein the thickness of the individual layers B, Bx is decreasing from bottom to top and the thickness of the individual layers E, Ex is decreasing from top to bottom. The dental mill blank can be used for producing dental articles.
    Type: Grant
    Filed: October 21, 2017
    Date of Patent: January 26, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Rainer K. Dittmann, Hans R. Schnagl, Grit Kindler, Björn Theelke, Michael Sogl, Michaela Urban
  • Publication number: 20190231494
    Abstract: The invention relates to a porous multi-layered coloured zirconia dental mill blank comprising a bottom layer B having the composition COMP-B which comprises ceramic components CER-COMP-B, colouring components COL-COMP-B and stabilizing components STAB-COMP-B, a top layer E having the composition COMP-E which comprises ceramic components CER-COMP-E, colouring components COL-COMP-E stabilizing components STAB-COMP-E, at least one intermediate layer Ex having the composition COMP-E of top layer E, at least one intermediate layer Bx having the composition COMP-B of bottom layer B, x being an integer and indicating the number of intermediate layers, wherein the layers with compositions COMP-B and COMP-E are arranged in alternating order, and wherein the thickness of the individual layers B, Bx is decreasing from bottom to top and the thickness of the individual layers E, Ex is decreasing from top to bottom. The dental mill blank can be used for producing dental articles.
    Type: Application
    Filed: October 21, 2017
    Publication date: August 1, 2019
    Applicant: 3M Innovative Properties Company
    Inventors: Rainer K. DITTMANN, Hans R. SCHNAGL, Grit KINDLER, Björn THEELKE, Michael SOGL, Michaela URBAN
  • Publication number: 20190117521
    Abstract: A method of making a monolithic dental restoration. The method includes the steps of providing a monolithic precursor of a dental restoration and firing the monolithic dental restoration precursor to provide the monolithic dental restoration. The zirconia material of both the dental restoration precursor as well as the dental restoration has a relative density of greater than 98% of the theoretic density of the zirconia material. The invention helps providing a color of a non-glazed dental restoration which resembles the color of a glazed dental restoration.
    Type: Application
    Filed: April 24, 2017
    Publication date: April 25, 2019
    Inventors: Andreas Herrmann, Michael Jahns, Rainer K. Dittmann, Grit Kindler, Dajana Maria Anna Zimmermann
  • Patent number: 9439838
    Abstract: The invention relates to a solution to be selectively applied to individual parts of the surface of dental ceramic(s) and a process for using the solution in the dental field. More specifically the invention relates to a solution comprising a) a solvent, b) an effect agent, and c) a complexing agent. The invention also relates to a kit comprising the solution and to a method of using the solution for selectively treating of parts of the surface dental ceramic(s). The invention also relates to a application instrument suitable for applying the solution.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 13, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael Jahns, Philipp Doebert, Holger Hauptmann, Grit Kindler
  • Publication number: 20140178834
    Abstract: The invention relates to a solution to be selectively applied to individual parts of the surface of dental ceramic(s) and a process for using the solution in the dental field. More specifically the invention relates to a solution comprising a) a solvent, b) an effect agent, and c) a complexing agent. The invention also relates to a kit comprising the solution and to a method of using the solution for selectively treating of parts of the surface dental ceramic(s). The invention also relates to a application instrument suitable for applying the solution.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 26, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael Jahns, Philipp Doebert, Holger Hauptmann, Grit Kindler