Patents by Inventor Rhett Grant

Rhett Grant 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).

  • Stormwater treatment system
    Patent number: 6719910
    Abstract: A stormwater treatment system which comprises a housing having a first filter layer and a second filter layer positioned within the housing. The first filter layer absorbs contaminants from stormwater to produce a first treated stormwater having an effluent concentration that meets the USEPA Water Quality Criteria when stormwater permeates the first layer. The second filter layer precipitates substantially all of the dissolved contaminants remaining in the first treated stormwater when the first treated storm water permeates through the second filter layer.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: April 13, 2004
    Assignee: The Board of Governors for Higher Education, State of Rhode Island and Providence Plantations
    Inventors: Leon Thiem, Rhett Grant