Patents by Inventor Heinrich Kappert

Heinrich Kappert 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).

  • Composite ceramic material comprising zirconia
    Patent number: 9403721
    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: October 16, 2014
    Date of Patent: August 2, 2016
    Assignee: Ivoclar Vivadent AG
    Inventors: Wolfram Holand, Elke Signer-Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jerome Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
  • Press muffle
    Patent number: 9017054
    Abstract: The invention concerns a press muffle made of an embedding mass for the production of dental restoration parts, with the embedding mass comprising at least one weakly heat-conducting, in particular ceramic, basic powder, with up to 70%, in particular 2% to 40% of the entire embedding mass (12) consisting of an additive having a higher thermal conductivity than the basic powder.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: April 28, 2015
    Assignee: Ivoclar Vivadent AG
    Inventors: Harald Bürke, Rudolf Jussel, Heinrich Kappert, Gottfried Rohner, Thomas Stampfer
  • Composite Ceramic Material Comprising Zirconia
    Publication number: 20150035210
    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: Application
    Filed: October 16, 2014
    Publication date: February 5, 2015
    Inventors: Wolfram Holand, Elke Signer-Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jerome Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo
  • 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
  • Press Muffle
    Publication number: 20120121752
    Abstract: The invention concerns a press muffle made of an embedding mass for the production of dental restoration parts, with the embedding mass comprising at least one weakly heat-conducting, in particular ceramic, basic powder, with up to 70%, in particular 2% to 40% of the entire embedding mass (12) consisting of an additive having a higher thermal conductivity than the basic powder.
    Type: Application
    Filed: October 11, 2011
    Publication date: May 17, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Harald Bürke, Rudolf Jussel, Heinrich Kappert, Gottfried Rohner, Thomas Stampfer
  • Dental Implant System
    Publication number: 20120077149
    Abstract: The invention relates to a dental implant system comprising a dental implant (28), a dental restoration part (12), a connector (24) with a central through-hole (58) and a circumferential, radially outwardly projecting collar (30) and with a screw (52) passing through the through-hole (58) by means of which at least the connector (24) may be fixedly connected with the dental implant (28), wherein the collar (30) comprises a first stop surface (26) that interacts with the dental implant (28), and a second stop surface (32) that interacts with an abutment (16) or a dental restoration part (12). The color of the collar (30), in particular the color of the connector (24), at least corresponds to a tooth color or a gingival color. The connector (24) at least partially respectively extends into the dental implant (28) and/or into the abutment (16), and substantially consists of the same material as the abutment (16) or consists of zirconium oxide.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 29, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Armin Ospelt, Robert Ganley, Heinrich Kappert
  • Composite Ceramic Material Comprising Zirconia
    Publication number: 20110254181
    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: Application
    Filed: April 13, 2011
    Publication date: October 20, 2011
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Wolfram Holand, Elke Apel, Christian Ritzberger, Frank Rothbrust, Heinrich Kappert, Volker Rheinberger, Jerome Chevalier, Helen Reveron, Nicolas Courtois, Ricardo Dellagiacomo