Patents by Inventor Volker Rheinberger

Volker Rheinberger 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).

  • Publication number: 20190248709
    Abstract: The present invention is directed to a porous pre-densified CeO2-stabilized ZrO2 ceramic 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 CeO2-stabilized ZrO2 ceramic 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.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Inventors: Christian Ritzberger, Frank Rothbrust, Marcel Schweiger, Nicolas Courtois, Jérôme Chevalier, Helen Reveron, Wolfram Höland, Volker Rheinberger
  • Patent number: 10376343
    Abstract: The invention relates to the use of lithium silicate glass ceramics and glasses with rubidium oxide content for coating an oxide ceramic, a metal or an alloy.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 13, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Volker Rheinberger, Markus Rampf, Marc Dittmer, Christian Ritzberger, Wolfram Höland, Marcel Schweiger
  • Patent number: 10358380
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of divalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 23, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Signer-Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 10321980
    Abstract: Lithium silicate glass ceramics and glasses comprising specific oxides of trivalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 18, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 10315958
    Abstract: The present invention is directed to a porous pre-densified CeO2 stabilized ZrO2 ceramic 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 ceramic 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.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: June 11, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Frank Rothbrust, Marcel Schweiger, Nicolas Courtois, Jérôme Chevalier, Helen Reveron, Wolfram Höland, Volker Rheinberger
  • Publication number: 20190090996
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 28, 2019
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Bürke, Wolfram Höland, Elke Signer-Apel, Christian Ritzberger, Dmitri Brodkin
  • Patent number: 10227255
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of pentavalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: March 12, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 10214443
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 26, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Elke Signer-Apel, Wolfram Höland, Marcel Schweiger, Christian Ritzberger, Harald Bürke, Volker Rheinberger
  • Patent number: 10206761
    Abstract: Pre-sintered blanks based on lithium metasilicate glass ceramic are described which are suitable in particular for the preparation of dental restorations.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: February 19, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Harald Bürke, Christian Ritzberger, Marcel Schweiger, Volker Rheinberger, Diana Tauch
  • Patent number: 10160687
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of tetravalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: December 25, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Signer-Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 10136973
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 27, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Bürke, Wolfram Höland, Elke Signer-Apel, Christian Ritzberger, Dmitri Brodkin
  • Patent number: 10098716
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of hexavalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: October 16, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 10064708
    Abstract: Blanks for dental purposes are described which have at least two layers, bonded to one another, of lithium silicate glasses and glass ceramics, wherein the layers differ in color and the layers are monolithic.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: September 4, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Harald Bürke, Diana Tauch, Marcel Schweiger, Wolfram Höland, Christian Ritzberger, Volker Rheinberger
  • Patent number: 9956146
    Abstract: The invention relates to a process for preparing dental restorations, wherein a lithium silicate glass ceramic or a lithium silicate glass is used which contains at least 8.5 wt.-% transition metal oxide selected from the group consisting of oxides of yttrium, oxides of transition metals with an atomic number from 41 to 79 and mixtures of these oxides.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: May 1, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Wolfram Höland, Marcel Schweiger, Volker Rheinberger
  • Publication number: 20180099899
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of pentavalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 12, 2018
    Applicant: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Patent number: 9878939
    Abstract: Lithium silicate glass ceramics and glasses comprising specific oxides of monovalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: January 30, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Publication number: 20170362118
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of divalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Publication number: 20170340420
    Abstract: Pre-sintered blanks based on lithium metasilicate glass ceramic are described which are suitable in particular for the preparation of dental restorations.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Harald Bürke, Christian Ritzberger, Marcel Schweiger, Volker Rheinberger, Diana Tauch
  • Publication number: 20170335249
    Abstract: A composition, containing a carrier medium and particles based on a metal compound with a weight-average particle diameter of 1 nm to 10 ?m is useful to clean metal or ceramic surfaces which are part of a dental restoration or of an implant abutment.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 23, 2017
    Inventors: Thorsten Bock, Ulrich Salz, Volker Rheinberger
  • Patent number: 9776912
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of divalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 3, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger