Patents by Inventor Mou S. Chao

Mou S. Chao 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 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
  • Electrochemical cell operating near the critical point of water
    Patent number: 4581105
    Abstract: The invention is a method for operating an electrochemical cell of the type having an anode and a cathode which are in contact with an aqueous electrolyte in the presence of at least one electroactive species, said method comprising: electrochemically converting at least a portion of at least one electroactive species to at least one electrochemical product while maintaining said aqueous electrolyte at supercritical fluid conditions.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: April 8, 1986
    Assignee: The Dow Chemical Company
    Inventors: Mou S. Chao, Richard D. Varjian, Gale G. Hoyer, Michael E. Paulaitis