Patents by Inventor Wilhelm Kaemereit

Wilhelm Kaemereit 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).

  • Powdery hydrophobic filler for bituminized traffic surfaces
    Patent number: 5453212
    Abstract: The invention concerns a powdery, hydrophobic filler for bituminized traffic surfaces, including at least one substance that lowers the freezing point of water.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: September 26, 1995
    Assignees: ChemischeFabrik Gruenau GmbH, Mannesmann Aktiengesellschaft
    Inventors: Dieter Annemaier, Stefan Keipl, Wilhelm Kaemereit, Oskar Schmitt