Patents by Inventor Erich Bogusch

Erich Bogusch 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).

  • Method for improving the quality of abrasive grains
    Patent number: 4278449
    Abstract: Abrasive grain, corundum (Al.sub.2 O.sub.3) comprising titanium oxide, preferably Ti.sub.2 O.sub.3, is provided with a ceramic coating. The abrasive grain is subjected to a heat treatment whereby the Ti-oxides change from the trivalent into the quadrivalent degree of oxidation. The coating and the change of the degree of oxidation are effected simultaneously.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: July 14, 1981
    Assignee: Tyrolit-Schleifmittelwerke Swarovski K.G.
    Inventors: Harald Helletsberger, Anton Aichhorn, Erich Bogusch