Patents by Inventor Gopalakrishnarao Parthasarathy

Gopalakrishnarao Parthasarathy 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).

  • Method for adsorption and reduction of hexavalent chromium by using ferrous-saponite
    Patent number: 7273557
    Abstract: The present invention relates to the development of an improved methodology for adsorption and subsequent reduction of hexavalent chromium aimed at the total removal of hexavalent chromium in water, which comprises, reacting dichromate solutions with natural ferrous-saponite clays at temperature 50 to 200° C. for the period of 1 to 3.0 hours.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: September 25, 2007
    Assignee: Council of Scientific and Industrial Research
    Inventors: Gopalakrishnarao Parthasarathy, Bojja Sreedhar, Boyapati Manoranjan Choudhary