Patents by Inventor James L. Calahan

James L. Calahan 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).

  • Polyoxometalate-modified carbon electrodes and uses therefor in capacitors
    Patent number: 4633372
    Abstract: Improved activated carbon electrodes are disclosed, which electrodes have increased charge storage capacity. Such improved electrodes are incorporated into energy storage devices such as electrical double layer capacitors. The improved charge storage capacity is due to the adsorption of polyoxometalate compounds into the activated carbon, which compounds are capable of reversible redox reactions and so provide a secondary charge storage mechanism without decreasing the charge storage ability of the activated carbon.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: December 30, 1986
    Assignee: The Standard Oil Company
    Inventors: James L. Calahan, Edward A. Cuellar, Michael J. Desmond, John C. Currie