Patents by Inventor John M. Scanlan

John M. Scanlan 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).

  • Lightweight media depth filter
    Patent number: 4747945
    Abstract: A depth filter comprises a filter column having opposed inlet and outlet ends containing particulate material. The particulate material is selected in such a manner to provide a lightweight filter which retains equivalent high performance to heavier filters.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: May 31, 1988
    Assignee: Culligan International Company
    Inventors: Edward G. Kreusch, John M. Scanlan