Patents by Inventor Kristian Fossheim

Kristian Fossheim 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).

  • Enhanced flux pinning in superconductors by embedding carbon nanotubes with BSCCO materials
    Patent number: 5627140
    Abstract: Enhanced flux pinning in superconductors is achieved by embedding carbon nanotubes into a superconducting matrix. The carbon nanotubes simulate the structure, size and shape of heavy ion induced columnar defects in a superconductor such as Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8+x. The nanotubes survive at treatment temperatures of up to approximately 800.degree. C. both in oxygen containing and in inert atmospheres. The superconducting matrix with nanotubes is heat treated at a lower temperature than the temperature used to treat the best case pure superconductor material.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: May 6, 1997
    Assignees: NEC Research Institute, Inc., Florida State University
    Inventors: Kristian Fossheim, Thomas W. Ebbesen