Patents by Inventor Wolfram Holland

Wolfram Holland 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
    Patent number: 8162664
    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: July 1, 2011
    Date of Patent: April 24, 2012
    Assignee: Ivoclar Vivadent AG
    Inventors: Elke Apel, Wolfram Holland, Marcel Schweiger, Christian Ritzberger, Harald Burke, Volker 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
    Patent number: 7993137
    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: November 11, 2010
    Date of Patent: August 9, 2011
    Assignee: Ivoclar Vivadent AG
    Inventors: Elke Apel, Wolfram Holland, Marcel Schweiger, Christian Ritzberger, Harald Burke, Volker Rheinberger