Patents by Inventor Holger Mitzel

Holger Mitzel 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).

  • Alpha alumina with high purity and high relative density, a method for its production and its use
    Patent number: 11964878
    Abstract: The present invention relates to an alpha alumina having a high purity, a high density and a low surface area and particularly, to a method to produce such an alpha alumina as well as to the use of the alpha alumina in sapphire production or the production of composite and ceramic bodies.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: April 23, 2024
    Inventors: Reiner Glockler, Holger Mitzel
  • Alpha Alumina With High Purity and High Relative Density, A Method for Its Production and Its Use
    Publication number: 20210317000
    Abstract: The present invention relates to an alpha alumina having a high purity, a high density and a low surface area and particularly, to a method to produce such an alpha alumina as well as to the use of the alpha alumina in sapphire production or the production of composite and ceramic bodies.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 14, 2021
    Inventors: Reiner Glockler, Holger Mitzel