Patents by Inventor William V. Hassenzahl

William V. Hassenzahl 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).

  • Magnetically directable remote guidance systems, and methods of use thereof
    Patent number: 6304769
    Abstract: A magnetically directable guidance system useful in, for example, medical magnetic resonance imaging is provided, as well as methods of directing the traverse of a device directable by the remote guidance system to a remote destination. A directable device and methods of use thereof are also disclosed. In one embodiment, the device is a catheter directable using a magnetic resonance imaging system. In another embodiment, the method includes interventional radiological diagnostic and therapeutic procedures.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: October 16, 2001
    Assignee: The Regents of the University of California
    Inventors: Ronald L. Arenson, William V. Hassenzahl, Timothy Roberts
  • Superconducting VAR control
    Patent number: 4348630
    Abstract: Static VAR control means employing an asymmetrically controlled Graetz bridge and a superconducting direct current coil having low losses and low cost characteristics.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: September 7, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Heinrich J. Boenig, William V. Hassenzahl