Patents by Inventor Wolfram Höland

Wolfram Höland 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- Low Quartz Glass Ceramic
    Publication number: 20180244564
    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: Application
    Filed: August 22, 2015
    Publication date: August 30, 2018
    Inventors: Christian Ritzberger, Markus Rampf, Wolfram Höland, Marc Dittmer, Marcel Schweiger
  • Process for the preparation of dental restorations
    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
  • LITHIUM SILICATE GLASS CERAMIC AND LITHIUM SILICATE GLASS COMPRISING A PENTAVALENT METAL OXIDE
    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
  • Lithium silicate glass ceramic and glass with monovalent metal oxide
    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
  • Lithium Silicate Diopside Glass Ceramics
    Publication number: 20180009701
    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: Application
    Filed: January 21, 2016
    Publication date: January 11, 2018
    Inventors: Markus Rampf, Christian Ritzberger, Marc Dittmer, Wolfram Höland, Marcel Schweiger
  • Lithium Silicate Glass Ceramic And Glass With Divalent Metal Oxide
    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
  • Lithium silicate glass ceramic and glass with divalent metal oxide
    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
  • Lithium silicate glass ceramics and lithium silicate glass containing cesium oxide
    Patent number: 9757311
    Abstract: The invention relates to the use of lithium silicate glass ceramics and glasses with caesium oxide content, which are suitable in particular for veneering oxide ceramic restorations and metal restorations.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: September 12, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Rampf, Marc Dittmer, Wolfram Höland, Urs Bolle, Marcel Schweiger, Volker Rheinberger, Christian Ritzberger
  • Lithium silicate glass ceramic and lithium silicate glass comprising a tetravalent metal oxide
    Patent number: 9695082
    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: October 11, 2012
    Date of Patent: July 4, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Lithium disilicate-apatite glass ceramic with transition metal oxide
    Patent number: 9688567
    Abstract: Lithium disilicate-apatite glass ceramics comprising transition metal oxide are described which are characterized by a high chemical stability, and the translucence of which can be adjusted as desired, and which can therefore be used in particular as restoration material in dentistry.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 27, 2017
    Assignee: Ivoclar Vivadent AG
    Inventors: Markus Rampf, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
  • Lithium Silicate Glass Ceramic and Glass with ZrO2 Content
    Publication number: 20170158552
    Abstract: Lithium silicate glass ceramics and glasses are described which can advantageously be applied to zirconium oxide ceramics in particular by pressing-on in the viscous state and form a solid bond with these.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 8, 2017
    Inventors: Christian Ritzberger, Ricardo Dellagiacomo, Marcel Schweiger, Harald Bürke, Wolfram Höland, Volker Rheinberger
  • Method For The Preparation Of Lithium Silicate Glasses And Lithium Silicate Glass Ceramics
    Publication number: 20170144919
    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: May 12, 2015
    Publication date: May 25, 2017
    Applicant: Ivoclar Vivadent AG
    Inventors: Sebastian Krolikowski, Markus Rampf, Christian Ritzberger, Harald Bürke, Wolfram Höland, Marcel Schweiger
  • LITHIUM SILICATE GLASS CERAMIC AND GLASS WITH TETRAVALENT METAL OXIDE
    Publication number: 20170121216
    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: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Christian RITZBERGER, Elke APEL, Wolfram HÖLAND, Volker RHEINBERGER
  • Glass Ceramic Having A Quartz Solid Solution Phase
    Publication number: 20170119508
    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: March 27, 2015
    Publication date: May 4, 2017
    Inventors: Marc Dittmer, Wolfram Höland, Marcel Schweiger, Christian Rüssel, Sabrina Berndt
  • GLASS CERAMIC WITH SiO2 AS THE MAIN CRYSTALLINE PHASE
    Publication number: 20170088456
    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: May 15, 2015
    Publication date: March 30, 2017
    Inventors: Markus Rampf, Marc Dittmer, Christian Ritzberger, Marcel Schweiger, Wolfram Höland
  • LITHIUM SILICATE MATERIALS
    Publication number: 20160368814
    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: September 2, 2016
    Publication date: December 22, 2016
    Inventors: Elke Signer-Apel, Wolfram Höland, Marcel Schweiger, Christian Ritzberger, Harald Bürke, Volker Rheinberger
  • LITHIUM SILICATE GLASS CERAMIC AND GLASS WITH HEXAVALENT METAL OXIDE
    Publication number: 20160302898
    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: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Lithium silicate materials
    Patent number: 9434639
    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: December 11, 2014
    Date of Patent: September 6, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Elke Signer-Apel, Wolfram Höland, Marcel Schweiger, Christian Ritzberger, Harald Bürke, Volker Rheinberger
  • LITHIUM DISILICATE-APATITE GLASS CERAMIC WITH TRANSITION METAL OXIDE
    Publication number: 20160236971
    Abstract: Lithium disilicate-apatite glass ceramics comprising transition metal oxide are described which are characterized by a high chemical stability, and the translucence of which can be adjusted as desired, and which can therefore be used in particular as restoration material in dentistry.
    Type: Application
    Filed: November 5, 2014
    Publication date: August 18, 2016
    Inventors: Markus Rampf, Christian RITZBERGER, Marcel SCHWEIGER, Wolfram HÖLAND
  • Lithium silicate glass ceramic and lithium silicate glass comprising a hexavalent metal oxide
    Patent number: 9403714
    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: October 11, 2012
    Date of Patent: August 2, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger