Patents by Inventor James Johannes Hopmans

James Johannes Hopmans 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).

  • Advanced control strategies for chlorine dioxide generating processes
    Patent number: 6972121
    Abstract: Chlorine dioxide generating processes of the single vessel type which produce chlorine dioxide of high purity are monitored and controlled by a computer using Advanced Control Strategies for steady, stable operation with optimum chemical usage on the basis of a desired chlorine dioxide production rate as the sole input from an operator to the computer program effecting the computer control.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: December 6, 2005
    Assignee: Superior Plus Inc.
    Inventors: Chunmin Pu, John Brian Birks, James Johannes Hopmans
  • Advanced control strategies for chlorine dioxide generating processes
    Publication number: 20030118503
    Abstract: Chlorine dioxide generating processes of the single vessel type which produce chlorine dioxide of high purity are monitored and controlled by a computer using Advanced Control Strategies for steady, stable operation with optimum chemical usage on the basis of a desired chlorine dioxide production rate as the sole input from an operator to the computer program effecting the computer control.
    Type: Application
    Filed: October 29, 2002
    Publication date: June 26, 2003
    Inventors: Chunmin Pu, John Brian Birks, James Johannes Hopmans