Patents by Inventor David E. Salt

David E. Salt 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).

  • Conversion of metal oxidation states by phytoreduction
    Patent number: 5928406
    Abstract: The present invention provides a method for remediating soil contaminated with Cr(VI) by reducing the Cr(VI) to Cr(III) in the soil. The method involves contacting the contaminated soil with a plant that accomplishes the reduction. Removal of the plant from the environment is not required; in fact, preferred embodiments of the invention involve plowing the plant back into the soil environment and replanting the soil.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: July 27, 1999
    Inventors: David E. Salt, Ilya Raskin, Nanda P. B. A. Kumar, Slavik Douchenkov