Patents by Inventor Rochelle M. Mickschl

Rochelle M. Mickschl 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).

  • Hydrophobic barrier for filters and filter media
    Patent number: 6123076
    Abstract: A filter is disclosed having a layer of electret filter media or triboelectric filter media immediately adjacent or in intimate contact with one, or both sides, of a layer of hydrophobic media. Such filter is placed in communication with the upstream and/or downstream side of a mechanical electronic or electrostatic filter to solve problems present in the prior art. Additionally, a medical ventilator filter and system using such a filter is disclosed.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: September 26, 2000
    Assignee: Porous Media Corporation
    Inventors: Keith A. Roberts, Michael R. Spearman, John H. Burban, Majid Zia, Rochelle M. Mickschl