Patents by Inventor Edward I. Zmuda

Edward I. Zmuda 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).

  • Surface wave frequency discriminator
    Patent number: 3962649
    Abstract: A frequency discriminator utilizing a surface wave device is described wherein threshold means are used to suppress spurious responses due to the side lobes and other parasitic effects of the surface wave device.
    Type: Grant
    Filed: January 6, 1975
    Date of Patent: June 8, 1976
    Assignee: GTE Sylvania Incorporated
    Inventors: Martin Fischman, Edward I. Zmuda