Patents by Inventor Birgit Pieruschka

Birgit Pieruschka 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).

  • Screen element
    Patent number: 6458303
    Abstract: A method for making a screen filter, especially for filtering liquid or gaseous materials, in which the screen filter comprises a mounting ring or mounting element (10) and a filtering screen arranged on the mounting ring or mounting element. The filtering screen is composed of a mesh web fabric (15) and can be connected to a basket-shaped support skeleton (16). The mounting ring (10) and the support skeleton (16) are injection-molded around the mesh web fabric (15).
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: October 1, 2002
    Inventors: Frank Fuehrer, Birgit Pieruschka, Frank Sommer