Patents by Inventor Karl-Friedrich Kraehe

Karl-Friedrich Kraehe 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).

  • Stabilized vapour-deposition materials based on titanium oxide
    Patent number: 5776847
    Abstract: The application relates to stabilized vapor-deposition materials based on titanium oxide. These materials contain, as stabilizing additive, an oxide from the group consisting of zirconium oxide, hafnium oxide, yttrium oxide and ytterbium oxide.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: July 7, 1998
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventor: Karl-Friedrich Kraehe