Patents by Inventor Laura H. Allen

Laura H. Allen 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).

  • High temperature superconductor/insulator composite thin films with Josephson coupled grains
    Patent number: 6242387
    Abstract: High temperature superconductor composite thin film devices with easily moved Josephson vortices are described having high Tc and good magnetic vortex properties. A preferred composite material was YBCO/CeO2 thin film on a MgO substrate. The superconductor composites were preferably formed by off-axis co-sputtering. A surprising recovery in properties was seen after plasma etching with oxygen.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: June 5, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edward J. Cukauskas, Laura H. Allen
  • High temperature superconductor/insulator composite thin films with Josephson coupled grains
    Patent number: 5889289
    Abstract: High temperature superconductor composite thin film devices with easily moved Josephson vortices are described having high T.sub.c and good magnetic vortex properties. A preferred composite material was YBCO/CeO.sub.2 thin film on a MgO substrate. The superconductor composites were preferably formed by off-axis co-sputtering. A surprising recovery in properties was seen after plasma etching with oxygen.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: March 30, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edward J. Cukauskas, Laura H. Allen
  • Superconductor and noble metal composite films
    Patent number: H2066
    Abstract: Films having islands of noble metal protruding from and surrounded by a layer of a superconductor are formed by depositing a layer a noble metal on a substrate, and depositing a superconducting layer at a temperature that converts the noble metal film into puddles. The resulting film is useful as a two-dimensional array of superconductor-normal metal-superconductor Josephson junctions.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: June 3, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Edward J. Cukauskas, Laura H. Allen, Michael A. Fisher