Patents by Inventor Virgil R. Beck

Virgil R. Beck 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).

  • Double peaked amplifier
    Patent number: 4199730
    Abstract: 1.
    Type: Grant
    Filed: September 28, 1949
    Date of Patent: April 22, 1980
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Virgil R. Beck