Patents by Inventor Thomas H. E. Mendum

Thomas H. E. Mendum 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).

  • Patent number: 8158002
    Abstract: The present invention provides variable pore size filters. The variable pore size filters of the present invention comprise a fabric matrix, having a set pore size, wherein the fabric matrix is coated with a gel that expands and shrinks in response to a trigger. When the gel is expanded, the pore size of the filter is small and filtering is accomplished. When the gel is shrunken, the pore size of the filter is large and cleaning of the filter by a backwash or forward flush of fluid is accomplished.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: April 17, 2012
    Assignee: Foster-Miller, Inc.
    Inventors: Elmer C. Lupton, Thomas H. E. Mendum, R. Edwin Hicks, Leslie S. Rubin, Justyna B. Teverovsky, Harris Gold