Patents by Inventor Christian van't Hoen

Christian van't Hoen 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: 20130296156
    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: July 12, 2013
    Publication date: November 7, 2013
    Inventors: Elke Apel, Wolfram Höland, Marcel Schweiger, Christian van t'Hoen, Harald Burke, Volker Rheinberger
  • Lithium Silicate Materials
    Publication number: 20110259053
    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: July 1, 2011
    Publication date: October 27, 2011
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Elke Apel, Wolfram Höland, Marcel Schweiger, Christian van t'Hoen, Harald Bürke, Volker M. Rheinberger
  • Lithium Silicate Materials
    Publication number: 20110252831
    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: July 1, 2011
    Publication date: October 20, 2011
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Elke Apel, Wolfram Holland, Marcel Schweiger, Christian van t'Hoen, Harald Burke, Volker M. Rheinberger
  • Lithium Silicate Materials
    Publication number: 20110059836
    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: November 11, 2010
    Publication date: March 10, 2011
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Elke Apel, Wolfram Höland, Marcel Schweiger, Christian van t'Hoen, Harald Bürke, Volker M. Rheinberger
  • Lithium silicate glass ceramic
    Patent number: 7452836
    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: February 6, 2006
    Date of Patent: November 18, 2008
    Assignee: Ivoclar Vivadent AG
    Inventors: Elke Apel, Wolfram Höland, Marcel Schweiger, Christian van t'Hoen, Harald Bürke, Volker M. Rheinberger
  • Translucent and radio-opaque ceramics
    Patent number: 7183232
    Abstract: Radio-opaque glass ceramics are described which have high chemical durability and adjustable translucency, brightness and coefficient of thermal expansion.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: February 27, 2007
    Assignee: Ivoclar Vivadent AG
    Inventors: Christian van't Hoen, Elke Apel, Wolfram Höland, Volker M. Rheinberger
  • Lithium silicate glass ceramic
    Publication number: 20070042889
    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 6, 2006
    Publication date: February 22, 2007
    Applicant: Ivoclar Vivadent AG
    Inventors: Elke Apel, Wolfram Holand, Marcel Schweiger, Christian van t'Hoen, Harald Burke, Volker Rheinberger
  • Apatite glass ceramic based on siliceous oxyapatites
    Patent number: 7166548
    Abstract: Apatite glass ceramic which contains at least one glass phase and at least one apatite phase and is characterized in that at least one of the apatite phases is a phosphate- and fluorine-free siliceous oxyapatite phase.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: January 23, 2007
    Assignee: Ivoclar Vivadent AG
    Inventors: Elke Apel, Wolfram Höland, Christian van't Hoen, Urs Bolle, Volker M. Rheinberger
  • Translucent and radio-opaque glass ceramics
    Publication number: 20060205582
    Abstract: Radio-opaque glass ceramics are described which have high chemical durability and adjustable translucency, brightness and coefficient of thermal expansion.
    Type: Application
    Filed: February 17, 2006
    Publication date: September 14, 2006
    Applicant: Ivoclar Vivadent AG
    Inventors: Christian van't Hoen, Elke Apel, Wolfram Holand, Volker Rheinberger
  • Apatite glass ceramic based on siliceous oxyapatites
    Publication number: 20050209082
    Abstract: Apatite glass ceramic which contains at least one glass phase and at least one apatite phase and is characterized in that at least one of the apatite phases is a phosphate- and fluorine-free siliceous oxyapatite phase.
    Type: Application
    Filed: October 26, 2004
    Publication date: September 22, 2005
    Inventors: Elke Apel, Wolfram Holand, Christian van't Hoen, Urs Bolle, Volker Rheinberger
  • Method for the production of an oxide ceramic shaped part and a part produced by such method
    Publication number: 20050164045
    Abstract: A method for producing an oxide ceramic shaped part includes pressing a powder provided with a binding material or a powder mixture of an oxide ceramic into a shaped part, pre-sintering the shaped part at substantially atmospheric pressure and a temperature of 600 to 1,300° C., and evacuating a closed container in which the pre-sintered shaped part is disposed with the shaped part having a maximum density of 10 to 90%. The container is at an absolute pressure of less than 40 mbar. Subsequently, an infiltration material is applied onto the shaped part via infiltration with the infiltration material operating to seal off the shaped part relative to the surrounding atmosphere. The length of time of the infiltration is preferably 1 to 10 minutes.
    Type: Application
    Filed: April 13, 2004
    Publication date: July 28, 2005
    Inventors: Frank Rothbrust, Christian Van t'Hoen, Wolfram Holand, Volker Rheinberger