Patents by Inventor Willi Backhaus

Willi Backhaus 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).

  • Silicate raw material for ceramics, process for preparing same and use thereof
    Patent number: 4721693
    Abstract: A silicate raw material for ceramics containing alkali oxides, zinc oxide and silicon dioxide is characterized in that the three components alkali oxide, zinc oxide and silicon dioxide are present as calcined three-component silicates in a molar ratio of from 1:1:2 to 1:2:6, preferably in integral molar ratios, are employed.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: January 26, 1988
    Assignee: Zinkweiss-Forschungsgesellschaft mit beschrankter Haftung
    Inventors: Siegfried Lenk, Karl-Heinz Ulbrich, Willi Backhaus