Patents by Inventor Ramanathan Gopal

Ramanathan Gopal 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).

  • Electrochemical synthesis of hydrogen peroxide
    Patent number: 6712949
    Abstract: Improved methods and devices for the synthesis of hydrogen peroxide employing redox catalysts in a gas diffusion electrode or membrane electrode assembly in a semi-chemical/electrochemical system for the production of high purity, stable, usually acidic, aqueous solutions of peroxide at high conversion efficiencies without requiring organic solvents.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: March 30, 2004
    Assignee: The Electrosynthesis Company, Inc.
    Inventor: Ramanathan Gopal
  • Membrane electrode assemblies for electrochemical cells
    Patent number: 6602630
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: August 5, 2003
    Assignee: The Electrosynthesis Company, Inc.
    Inventor: Ramanathan Gopal
  • Electrochemical synthesis of hydrogen peroxide
    Publication number: 20030019758
    Abstract: Improved methods and devices for the synthesis of hydrogen peroxide employing redox catalysts in a gas diffusion electrode or membrane electrode assembly in a semi-chemical/electrochemical system for the production of high purity, stable, usually acidic, aqueous solutions of peroxide at high conversion efficiencies without requiring organic solvents.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 30, 2003
    Applicant: The Electrosynthesis Company, Inc.
    Inventor: Ramanathan Gopal
  • Method of producing sodium dithionite by electrochemical means
    Patent number: 5126018
    Abstract: A method of producing sodium dithionite comprising electrolyzing a catholyte solution of sulfur dioxide in an electrolytic cell at a pH of at least about 3, the electrolytic cell having a carbonaceous cathode, is disclosed. Particularly high current efficiencies can be attained using a high surface area carbon material for the cathode. The use of a stabilizer to inhibit decomposition of the sodium dithionite to form sodium thiosulfate is also disclosed. The stabilizer is added to the catholyte and is selected from the group consisting of phosphoric acid, sodium tripolyphosphate, acid phosphates and mixtures thereof.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: June 30, 1992
    Assignee: The Dow Chemical Company
    Inventors: Kenneth J. Stutts, Mou S. Chao, Ramanathan Gopal, Indresh Mathur