Patents by Inventor Marcel Schweiger

Marcel Schweiger 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).

  • LITHIUM SILICATE MATERIALS
    Publication number: 20200024181
    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: Application
    Filed: February 25, 2019
    Publication date: January 23, 2020
    Inventors: Elke Signer-Apel, Wolfram Höland, Marcel Schweiger, Christian Ritzberger, Harald Bürke, Volker Rheinberger
  • Lithium silicate-low quartz glass ceramic
    Patent number: 10501366
    Abstract: Lithium silicate-low quartz glass ceramics are described which are characterized by a combination of very good mechanical and optical properties and can therefore be used in particular as restoration material in dentistry.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: December 10, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Markus Rampf, Wolfram Höland, Marc Dittmer, Marcel Schweiger
  • Glass Ceramic Having A Quartz Solid Solution Phase
    Publication number: 20190365515
    Abstract: Quartz solid solution glass ceramics and precursors thereof are described, which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.
    Type: Application
    Filed: July 29, 2019
    Publication date: December 5, 2019
    Inventors: Marc Dittmer, Wolfram Höland, Marcel Schweiger, Christian Rüssel, Sabrina Seidel
  • Method For The Preparation Of Glasses And Glass Ceramics With SiO2 As Main Crystal Phase
    Publication number: 20190352220
    Abstract: The invention relates to a method for the preparation of a glass ceramic or a glass, which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a glass ceramic and a glass which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Markus Rampf, Sebastian Krolikowski, Christian Ritzberger, Wolfram Höland, Marcel Schweiger
  • Pre-sintered blank for dental purposes
    Patent number: 10470854
    Abstract: Pre-sintered blanks based on lithium disilicate glass ceramic are described which are suitable in particular for the preparation of dental restorations.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: November 12, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Harald Bürke, Christian Ritzberger, Marcel Schweiger, Volker Rheinberger
  • Lithium silicate diopside glass ceramics
    Patent number: 10457589
    Abstract: Lithium silicate-diopside glass ceramics are described which are characterized by a controllable translucence and can be satisfactorily processed mechanically and therefore can be used in particular as restoration material in dentistry.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 29, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Rampf, Christian Ritzberger, Marc Dittmer, Wolfram Höland, Marcel Schweiger
  • Glass Ceramic Having SiO2 As Main Crystal Phase
    Publication number: 20190315651
    Abstract: Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 17, 2019
    Inventors: Markus Rampf, Marc Dittmer, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
  • Method for the preparation of glasses and glass ceramics with SiO2 as main crystal phase
    Patent number: 10414688
    Abstract: The invention relates to a method for the preparation of a glass ceramic or a glass, which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a glass ceramic and a glass which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 17, 2019
    Assignee: Ivoclat Vivadent AG
    Inventors: Markus Rampf, Sebastian Krolikowski, Christian Ritzberger, Wolfram Höland, Marcel Schweiger
  • CeO2-Stabilized ZrO2 Ceramics For Dental Applications
    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
  • Glass ceramic with SiO2 as the main crystalline phase
    Patent number: 10377661
    Abstract: Glass ceramics having SiO2 as main crystal phase and precursors thereof are described which are characterized by very good mechanical and optical properties and in particular can be used as restoration material in dentistry.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 13, 2019
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Rampf, Marc Dittmer, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
  • Lithium silicate glass ceramic and glass with rubidium oxide content
    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
  • CeO-stabilized ZrOceramics for dental applications
    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
  • CONTROLLING OF SINTERING KINETICS OF OXIDE CERAMICS
    Publication number: 20190099245
    Abstract: The invention relates to multi-layer oxide ceramic bodies and in particular to presintered multi-layer oxide ceramic blanks and oxide ceramic green bodies suitable for dental applications. These bodies can be thermally densified by further sintering without distortion and are thus particularly suitable for the manufacture of dental restorations. The invention also relates to a process for the manufacture of such multi-layer oxide ceramic bodies as well as to a process for the manufacture of dental restorations using the multi-layer oxide ceramic bodies.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 4, 2019
    Inventors: Frank Rothbrust, Christian Ritzberger, Dmitri Brodkin, Ajmal Khan, Marcel Schweiger
  • LITHIUM SILICATE MATERIALS
    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
  • Lithium silicate materials
    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
  • Pre-sintered blank for dental purposes
    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
  • METHOD FOR THE PREPARATION OF LITHIUM SILICATE GLASSES AND LITHIUM SILICATE GLASS CERAMICS
    Publication number: 20190039944
    Abstract: The invention relates to a method for the preparation of a lithium silicate glass or a lithium silicate glass ceramic which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a lithium silicate glass and a lithium silicate glass ceramic which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Inventors: Sebastian Krolikowski, Markus Rampf, Christian Ritzberger, Harald Bürke, Wolfram Holand, Marcel Schweiger
  • Lithium silicate materials
    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
  • Method for the preparation of lithium silicate glasses and lithium silicate glass ceramics
    Patent number: 10131569
    Abstract: The invention relates to a method for the preparation of a lithium silicate glass or a lithium silicate glass ceramic which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a lithium silicate glass and a lithium silicate glass ceramic which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: November 20, 2018
    Assignee: Ivoclar Vivadent AG
    Inventors: Sebastian Krolikowski, Markus Rampf, Christian Ritzberger, Harald Bürke, Wolfram Höland, Marcel Schweiger
  • Method For The Preparation Of Glasses And Glass Ceramics With SiO2 As Main Crystal Phase
    Publication number: 20180282204
    Abstract: The invention relates to a method for the preparation of a glass ceramic or a glass, which comprise cerium ions and are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth. The invention also relates to a glass ceramic and a glass which can be obtained using the method according to the invention, the use thereof as dental material and in particular for the preparation of dental restorations, as well as a glass-forming composition which is suitable for use in the method according to the invention.
    Type: Application
    Filed: October 28, 2016
    Publication date: October 4, 2018
    Inventors: Markus Rampf, Sebastian Krolikowski, Christian Ritzberger, Wolfram Holand, Marcel Schweiger