Patents by Inventor Zoltan J. Cendes

Zoltan J. Cendes 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).

  • Shielded magnetic assembly for use with a hearing aid
    Patent number: 4936305
    Abstract: A shielded magnetic assembly for use in a magnetic hearing aid is described. The shielded assembly uses a disc-shaped magnet with a high permeability, low coercivity material placed on the face of the magnet away from the air gap. Preferably, the shielding material also covers portions of the edge of the magnet to form a cap. The shielding focuses the magnet's energy into the air gap to improve coupling and reduce interference from external magnetic fields.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: June 26, 1990
    Assignee: Richards Medical Company
    Inventors: Cyrus N. Ashtiani, Zoltan J. Cendes