Patents by Inventor Johan Sundqvist

Johan Sundqvist 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).

  • Chemical method
    Patent number: 6322690
    Abstract: The invention relates to a process for production of an alkaline hydrogen peroxide solution and an acidified alkali metal salt solution containing chlorate in an electrochemical cell including an anode compartment provided with an anode and a cathode compartment provided with an oxygen reducing cathode. In the cathode compartment an aqueous alkali metal hydroxide and hydrogen peroxide is formed, wherein the molar ratio MOH:H2O2 for the net production thereof is maintained from about 0.1:1 to about 2:1. Also a process for simultaneous production of chlorine dioxide is disclosed.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: November 27, 2001
    Assignee: Akzo Nobel N.V.
    Inventors: Roy Hammer-Olsen, John Sokol, Göran Sundström, Johan Sundqvist