Patents by Inventor Ragnars Martin Eggerts

Ragnars Martin Eggerts 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).

  • Aural-visual ratio control apparatus
    Patent number: 4081839
    Abstract: This disclosure is concerned with obtaining aural-visual ratio control with novel intercarrier detection cooperative with a high-Q notch filter feeding a strip amplifier or heterodyne processor.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: March 28, 1978
    Assignee: Blonder-Tongue Laboratories, Inc.
    Inventors: Martin Sperber, Ragnars Martin Eggerts, George Scherer