Patents by Inventor Fred Sterzer

Fred Sterzer 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).

  • Electronic license plate for motor vehicles
    Patent number: 4001822
    Abstract: An electronic license tag or plate formed into a unitary structure and including a single antenna system cooperating in a system comprising a harmonic radiator which transmits a pulse coded identification signal in response to an interrogation signal, and in a signal communication path for detecting and decoding code modulations in the interrogation signal and deriving therefrom an information signal which is communicated to the operator of a vehicle to which the tag or plate is affixed.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: January 4, 1977
    Assignee: RCA Corporation
    Inventor: Fred Sterzer