Patents by Inventor Robert C. Sisk

Robert C. Sisk 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).

  • Multilayer thin film hall effect device
    Patent number: 5517170
    Abstract: A Hall effect device and a method of obtaining a magnetic field map of a magnetic body with the Hall effect device. The device comprises: (1) a substrate, (2) a first layer having a first Hall coefficient deposited over the substrate and (3) a second layer having a second Hall coefficient deposited over the first layer, the first and second layers cooperating to create, in the Hall effect device, a third Hall coefficient different from the first and second Hall coefficients. Creation of the third Hall coefficient by cooperation of the first and second layers allows use of materials for the first and second layers that were previously unavailable for Hall effect devices due to their relatively weak Hall coefficient.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: May 14, 1996
    Assignee: The United States of America as represented by the Administator of the National Aeronautics and Space Administration
    Inventors: Palmer N. Peters, Robert C. Sisk