Patents by Inventor John L. Steimke

John L. Steimke 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 to prevent sulfur accumulation in membrane electrode assembly
    Patent number: 8709229
    Abstract: A method of operating a hybrid sulfur electrolyzer to generate hydrogen is provided that includes the steps of providing an anolyte with a concentration of sulfur dioxide, and applying a current. During steady state generation of hydrogen a plot of applied current density versus concentration of sulfur dioxide is below a boundary line. The boundary line may be linear and extend through the origin of the graph with a slope of 0.001 in which the current density is measured in mA/cm2 and the concentration of sulfur dioxide is measured in moles of sulfur dioxide per liter of anolyte.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 29, 2014
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventors: John L. Steimke, Timothy J. Steeper, David T. Herman
  • Method to prevent sulfur accumulation in membrane electrode assembly
    Publication number: 20110180417
    Abstract: A method of operating a hybrid sulfur electrolyzer to generate hydrogen is provided that includes the steps of providing an anolyte with a concentration of sulfur dioxide, and applying a current. During steady state generation of hydrogen a plot of applied current density versus concentration of sulfur dioxide is below a boundary line. The boundary line may be linear and extend through the origin of the graph with a slope of 0.001 in which the current density is measured in mA/cm2 and the concentration of sulfur dioxide is measured in moles of sulfur dioxide per liter of anolyte.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 28, 2011
    Inventors: John L. Steimke, Timothy J. Steeper, David T. Herman