Patents by Inventor Douglas F. Dodd

Douglas F. Dodd 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: 6200521
    Abstract: A silver waste recovery system including a container having an inlet and an outlet at a lower elevation than the inlet, filler material in a silver cell is in communication with the inlet and a separate non-silver reactive filter is in communication with the outlet. A catch basin is positioned about the silver cell and the non-silver reactive filter contains particulates in the area of the filter and the filler material. Fluid entering the inlet passes through the silver cell and exits into the catch basin. It thereafter enters the non-silver reactive filter and exits from it through the outlet.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: March 13, 2001
    Inventor: Douglas F. Dodd