Patents by Inventor Elke Apel

Elke Apel 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 glass ceramic and glass with trivalent metal oxide
    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
  • Lithium silicate glass ceramic and lithium silicate glass comprising a pentavalent metal oxide
    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
  • Lithium silicate glass ceramic and glass with hexavalent metal oxide
    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
  • 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 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 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 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
  • LITHIUM SILICATE GLASS CERAMIC AND GLASS WITH TRIVALENT METAL OXIDE
    Publication number: 20160302897
    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: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Inventors: Christian RITZBERGER, Elke APEL, Wolfram HÕLAND, 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 glass ceramic and lithium silicate glass comprising a trivalent metal oxide
    Patent number: 9402699
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of trivalent 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
  • 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
  • LITHIUM SILICATE GLASS CERAMIC AND GLASS WITH DIVALENT METAL OXIDE
    Publication number: 20160075593
    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: November 20, 2015
    Publication date: March 17, 2016
    Inventors: Christian Ritzberger, Elke APEL, Wolfram HÖLAND, Volker RHEINBERGER
  • Lithium silicate materials
    Patent number: 9248078
    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: March 15, 2013
    Date of Patent: February 2, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Marcel Schweiger, Volker Rheinberger, Harald Burke, Wolfram Höland, Elke Apel, Christian Ritzberger, Dmitri Brodkin
  • Lithium silicate glass ceramic and lithium silicate glass comprising a divalent metal oxide
    Patent number: 9232989
    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: October 11, 2012
    Date of Patent: January 12, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • LITHIUM SILICATE GLASS CERAMIC AND GLASS WITH MONOVALENT METAL OXIDE
    Publication number: 20150299031
    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: Application
    Filed: June 26, 2015
    Publication date: October 22, 2015
    Inventors: Christian RITZBERGER, Elke APEL, Wolfram HÖLAND, Volker RHEINBERGER
  • Lithium silicate glass ceramic and lithium silicate glass comprising a monovalent metal oxide
    Patent number: 9101439
    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: October 11, 2012
    Date of Patent: August 11, 2015
    Assignee: Ivoclar Vivadent, AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • Composite ceramic material comprising zirconia
    Patent number: 8889576
    Abstract: The invention relates to a composite ceramic material which comprises: (a) a first phase based on zirconia containing CeO2 as stabilizer, and (b) a second phase based on an aluminate. The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 18, 2014
    Assignee: Ivoclar Vivadent AG
    Inventors: Wolfram Höland, Elke Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jérôme Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
  • LITHIUM SILICATE GLASS CERAMIC AND LITHIUM SILICATE GLASS COMPRISING A HEXAVALENT METAL OXIDE
    Publication number: 20140232030
    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: October 11, 2012
    Publication date: August 21, 2014
    Applicant: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger