Patents by Inventor Donald B. Stevens, Sr.

Donald B. Stevens, Sr. 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 separating solid particulates from a liquid
    Patent number: 6387271
    Abstract: A method for removing iron-containing contaminants from condensate from a power generating plant includes passing the condensate through a plurality of pleated filter elements contained within a housing, including direct the condensate through a pleated hydrophilic film comprising ultra-high molecular weight polyethylene. The invention is capable of removing fine particulate matter and provides long filtration cycles between backwashing.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: May 14, 2002
    Assignee: Pall Corporation
    Inventors: Stephen A. Geibel, Tanweer U. Haq, Donald B. Stevens, Sr.