Patents by Inventor Stephen J. Smet

Stephen J. Smet 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).

  • Flush tank water conditioner
    Patent number: 5987655
    Abstract: A flush tank water conditioner includes an elongate water-soluble solid chemical compound column adapted to be suspended in the overflow tube of a conventional toilet reservoir tank. The overflow tube located column dries between toilet operations to conserve conditioning chemicals and to prevent over concentration. A dye material embedded at the center of the disinfectant column is released as an end-of-useful-life indicator.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: November 23, 1999
    Inventor: Stephen J. Smet