Patents by Inventor Robert J. Soulen, Jr.

Robert J. Soulen, Jr. 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 of controlling a super conductor
    Patent number: 5872368
    Abstract: The order parameter of a superconductor is reduced by injecting spin-polarized carriers into the superconductor. The reduction in the order parameter is used to modulate the critical current of the superconductor. In a typical embodiment, a current is caused to flow through a superconductor. Spin polarized electrons are then injected into the path of the current in the superconductor by biasing a magnetic metal with respect to a terminal of the superconductor. The bias current may be varied to modulate the injection and thus the flow of current through the superconductor.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: February 16, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael Osofsky, Robert J. Soulen, Jr., Raymond Auyeung, James S. Horwitz, Doug B. Chrisey, Mark Johnson
  • Machinable oxide ceramic
    Patent number: 5215961
    Abstract: A machinable high Tc ceramic superconductor is formed by weighing and mixing appropriate stoichiometric amounts of Bi.sub.2 O.sub.3, SrCO.sub.3, CaCO.sub.3, and CuO (BSCCO), removing carbonates from the mixture, melting the mixture, casting the melted mixture into a mold, and inducing superconductivity and growth of randomly oriented platelets in the cast.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: June 1, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Roy J. Rayne, Louis E. Toth, L. David Jones, Robert J. Soulen, Jr., Barry A. Bender