Patents by Inventor Greg A. Schlensker

Greg A. Schlensker 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).

  • Fish tank filter
    Patent number: 4851112
    Abstract: A fish tank filter comprising an overflow tank for collecting surface waters from a fish tank, means for conveying the waters to a dry filter, a dry filter comprising a plurality of vertically stacked filter pans each having a filter material therein, a means for collecting the effluent from the dry filter and conveying it to a wet filter, a wet filter comprising a plurality of serially arranged filter material-containing filter compartments in a tank, and means for returning purified water to the fish tank.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: July 25, 1989
    Inventor: Greg A. Schlensker