Patents by Inventor Sandip Chattopadhyay

Sandip Chattopadhyay 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).

  • Decontaminant and Process for Decontamination of Chemicals from Infrastructural Materials
    Publication number: 20150344822
    Abstract: A decontaminant and method for decontaminating an infrastructural system is disclosed, the decontaminant including from about 3% to about 5%, by weight, of a permanganate compound; from about 8% to about 12%, by weight, of a strong mineral acid; and from about 80% to about 90%, by weight, of a solvent.
    Type: Application
    Filed: June 2, 2015
    Publication date: December 3, 2015
    Inventor: Sandip Chattopadhyay
  • MATERIALS AND METHODS FOR ENVIRONMENTAL CONTAMINANT REMEDIATION
    Publication number: 20130306555
    Abstract: An anthropogenic sorbent material modified for sequestering and/or attenuating multiple chemical and/or biological pollutant species, both organic and inorganic, in an aqueous environment is disclosed as well as a method of sequestering and/or attenuating multiple chemical and/or biological pollutant species, both organic and inorganic, in an aquatic ecosystem by capping at least a portion of a sedimentary basin of the aquatic ecosystem.
    Type: Application
    Filed: January 16, 2013
    Publication date: November 21, 2013
    Applicant: TETRA TECH, INC.
    Inventor: Sandip Chattopadhyay
  • Treatment of environmental pollutants with mineral ores
    Patent number: 7396470
    Abstract: A method for removing a pollutant from emissions or the environment comprising: contacting a mineral ore or the use of a mineral ore selected from the group consisting of bauxite, modified bauxite and mixtures thereof. Typically, the pollutant is a heavy metal or a microorganism.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: July 8, 2008
    Assignee: Battelle Memorial Institute
    Inventors: Arun R. Gavaskar, Sandip Chattopadhyay
  • Treatment of environmental pollutants with mineral ores
    Publication number: 20060151395
    Abstract: A method for removing a pollutant from emissions or the environment comprising: contacting a mineral ore or the use of a mineral ore selected from the group consisting of bauxite, modified bauxite and mixtures thereof. Typically, the pollutant is a heavy metal or a microorganism.
    Type: Application
    Filed: March 12, 2003
    Publication date: July 13, 2006
    Inventors: Arun Gavaskar, Sandip Chattopadhyay