Patents by Inventor Frederic R. Morgenthaler

Frederic R. Morgenthaler 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).

  • Non-invasive hyperthermia method and apparatus
    Patent number: 4934365
    Abstract: A method and apparatus for non-invasive hyperthermia is described employing an electromagnetic (EM) energy generating applicator which utilizes in one embodiment an artificially simulated impedance matching layer for coupling energy to tissue. In another embodiment, the matching layer is comprised of varactor diodes and is voltage controllable. In another embodiment, the applicator utilizes a voltage controllable trough-guide applicator and, lastly, a combination ultrasound and EM applicator is described.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: June 19, 1990
    Assignee: Massachusetts Institute of Technology
    Inventor: Frederic R. Morgenthaler
  • Electromagnetic signal processor forming localized regions of magnetic wave energy in gyro-magnetic material
    Patent number: 4152676
    Abstract: A signal processing filter wherein electromagnetic wave energy is coupled into a magnetic material at a first region of the surface of the magnetic material and is coupled from the material at a second region of the surface after having propagated within the material as magnetic wave energy. The filter parameters serve to confine the electromagnetic wave energy to a small, localized region of the magnetic material and regional confinement of the magnetic wave energy is also achieved.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: May 1, 1979
    Assignee: Massachusetts Institute of Technology
    Inventors: Frederic R. Morgenthaler, Dale A. Zeskind