Patents by Inventor Joseph W. Kell

Joseph W. Kell 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).

  • Minute doping for YBCO flux pinning
    Patent number: 7871663
    Abstract: A method for enhancing the flux pinning of a YBCO superconductor by substituting minute quantities of rare earth elements (La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) or other deleterious elements (Sc, etc.) for Y in YBCO thin films is described. The method of the present invention enables enhanced flux pinning of the material while not significantly increasing the cost of the HIS material and can be used in all HTS deposition methods since it is not process dependent.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: January 18, 2011
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Paul N. Barnes, Joseph W. Kell, Timothy J. Haugan