Patents by Inventor Norbert Thiel

Norbert Thiel 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 DISILICATE GLASS-CERAMIC, METHOD FOR PRODUCTION THEREOF AND USE THEREOF
    Publication number: 20230099360
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: June 28, 2022
    Publication date: March 30, 2023
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn PROBST, Norbert THIEL, Joachim BIBUS, Markus VOLLMANN, Udo SCHUSSER
  • Non-dense sintered ceramic molded body having at least two layers
    Patent number: 11034051
    Abstract: A non-dense sintered ceramic molded body having at least two layers, wherein a first powdery ceramic material forming a layer is contacted with at least a second powdery material forming at least a second layer. The body has a color gradient and maintains dimensional stability during sintering and forming. An admixing component and a common sintering temperature are used to control the volume decrease of the layers during sintering.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: June 15, 2021
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Michael Tholey, Michael Dorn, Michael Godiker, Norbert Thiel
  • LITHIUM DISILICATE GLASS-CERAMIC, METHOD FOR PRODUCTION THEREOF AND USE THEREOF
    Publication number: 20210055157
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: September 4, 2020
    Publication date: February 25, 2021
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Lithium disilicate glass-ceramic, method for production thereof and use thereof
    Patent number: 10765496
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 8, 2020
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUNDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • PROCESS FOR PRODUCING A NON-DENSE SINTERED CERAMIC MOLDED BODY HAVING AT LEAST TWO LAYERS
    Publication number: 20190337185
    Abstract: A process for producing a non-dense sintered ceramic molded body having at least two layers, wherein a first powdery ceramic material forming a layer is contacted with at least a second powdery material forming at least a second layer; said first powdery material has a presintering temperature T1 that is higher than the presintering temperature TS of said at least second powdery ceramic material; the course of a curve of shrinkage S1 of said at least first powdery ceramic material differs from the course of a curve of shrinkage S2 of said at least second powdery material, wherein curve of shrinkage S1 is shifted towards higher temperatures as compared to curve of shrinkage S2; and the layers are subjected to a common temperature treatment at a presintering temperature TS that is lower than the presintering temperature T1 and at least equal to T3 to cause sintering that remains in a stage of sintering that has not proceeded to the theoretical density; wherein the curve of shrinkage S1 is modified by admixing
    Type: Application
    Filed: July 8, 2019
    Publication date: November 7, 2019
    Inventors: Michael Tholey, Michael Dorn, Michael Godiker, Norbert Thiel
  • Lithium silicate glasses or glass ceramics, method for production thereof and use thereof
    Patent number: 10442725
    Abstract: The invention relates to glass ceramics based on the lithium metasilicate system (Li2O.SiO2(Li2SiO3)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: October 15, 2019
    Assignees: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser
  • Process for producing a non-dense sintered ceramic molded body having at least two layers
    Patent number: 10391671
    Abstract: A process for producing a non-dense sintered ceramic molded body having at least two layers, wherein a first powdery ceramic material forming a layer is contacted with at least a second powdery material forming at least a second layer; said first powdery material has a presintering temperature T1 that is higher than the presintering temperature Ts of said at least second powdery ceramic material; the course of a curve of shrinkage S1 of said at least first powdery ceramic material differs from the course of a curve of shrinkage S2 of said at least second powdery material, wherein curve of shrinkage S1 is shifted towards higher temperatures as compared to curve of shrinkage S2; and the layers are subjected to a common temperature treatment at a presintering temperature Ts that is lower than the presintering temperature T1 and at least equal to T3 to cause sintering that remains in a stage of sintering that has not proceeded to the theoretical density; wherein the curve of shrinkage S1 is modified by admixing a
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: August 27, 2019
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Michael Tholey, Michael Dorn, Michael Godiker, Norbert Thiel
  • Lithium disilicate glass-ceramic, method for production thereof and use thereof
    Patent number: 10357343
    Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: July 23, 2019
    Assignees: Vita Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Porous silicate ceramic body, dental restorations and method for the production thereof
    Patent number: 10322973
    Abstract: A porous, silicate, ceramic body, optionally with different colors, with a first density, can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, is 25 to 180 MPa.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: June 18, 2019
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Norbert Thiel, Michael Dorn, Joachim Bibus, Vilma Geske, Michael Tholey, Enno Bojemueller, Birgit Huber
  • LITHIUM DISILICATE GLASS-CERAMIC, METHOD FOR PRODUCTION THEREOF AND USE THEREOF
    Publication number: 20190142556
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: December 20, 2018
    Publication date: May 16, 2019
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn PROBST, Norbert THIEL, Joachim BIBUS, Markus VOLLMANN, Udo SCHUSSER
  • Porous, silicate, ceramic body, dental restoration and method for the production thereof
    Patent number: 10266452
    Abstract: The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 23, 2019
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co. KG
    Inventors: Norbert Thiel, Michael Dorn, Joachim Bibus, Vilma Geske, Michael Tholey, Enno Bojemueller, Birgit Huber
  • Lithium disilicate glass-ceramic, method for production thereof and use thereof
    Patent number: 10219879
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: March 5, 2019
    Assignees: DEGUDENT GMBH, FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Porous, silicate, ceramic body, dental restoration and method for the production thereof
    Patent number: 10150706
    Abstract: The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: December 11, 2018
    Assignee: VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG
    Inventors: Norbert Thiel, Michael Dorn, Joachim Bibus, Vilma Geske, Michael Tholey, Enno Bojemueller, Birgit Huber
  • LITHIUM DISILICATE GLASS-CERAMIC, METHOD FOR PRODUCTION THEREOF AND USE THEREOF
    Publication number: 20180155234
    Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: January 9, 2017
    Publication date: June 7, 2018
    Applicants: VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn PROBST, Norbert THIEL, Joachim BIBUS, Markus VOLLMANN, Udo SCHUSSER
  • Dental restoration, method for its production and ingot
    Patent number: 9730863
    Abstract: The invention refers to a method for producing a dental restoration comprising a lithium silicate glass or glass ceramic as well as a dental restoration inself. The invention further refers to a ingot with the same composition having a defined strength.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 15, 2017
    Assignees: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V., Vita Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser, Michael Hackner
  • Molded member made of form-stabilized material and method for the manufacture thereof
    Patent number: 9681931
    Abstract: Molded member made of form-stabilized material, comprising at least one first component and one second component, characterized in that the second component has a different pigmentation than the first component and the second component is disposed inside the first element, forming a boundary surface, in such a way that the boundary surface represents a spatially curved surface.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: June 20, 2017
    Assignee: Vita Zahnfabrik H. Rauter GmbH & Co., KG
    Inventors: Norbert Thiel, Olivia Albarski, Michael Dorn, Stefan Aechtner, Joachim Bibus, Andreas Schmid
  • Lithium disilicate glass-ceramic, method for production thereof and use thereof
    Patent number: 9604873
    Abstract: The invention relates to glass-ceramics based on the lithium disilicate system which can be mechanically machined easily in an intermediate step of crystallization and, after complete crystallization, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: March 28, 2017
    Assignees: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V., Vita Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • LITHIUM SILICATE GLASSES OR GLASS CERAMICS, METHOD FOR PRODUCTION THEREOF AND USE THEREOF
    Publication number: 20150376053
    Abstract: The invention relates to glass ceramics based on the lithium metasilicate system (Li2O.SiO2 (Li2SiO3)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard DURSCHANG, Jörn PROBST, Norbert THIEL, Michael GÖDIKER, Markus VOLLMANN, Udo SCHUSSER
  • Dental restoration, method for production thereof and glass ceramic
    Patent number: 9206077
    Abstract: The invention relates to glass ceramics, which show high strength, high translucency, high chemical stability and which are still mechanically processible. The invention further refers to a method for producing a dental restoration comprising such glass or glass ceramic as well as the dental restoration itself.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 8, 2015
    Assignees: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e. V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser, Carsten Wiesner
  • Lithium silicate glass ceramic, method for production thereof and use thereof
    Patent number: 9125812
    Abstract: The invention relates to glass ceramics based on the lithium metasilicate system (Li2OSiO2(Li2SiO3)), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high-strength, highly translucent and chemically stable glass ceramic.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: September 8, 2015
    Assignees: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBH
    Inventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser