Patents by Inventor Frank G. Renz

Frank G. Renz 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).

  • Transceiver polarity protector
    Patent number: 4027223
    Abstract: A protective device for portable transceivers to assure that improper polarity is not applied to the power input. Two relays, oppositely polarized from each other by use of diodes, sense the applied power polarity and connect that power so that the power applied to the transceivers is always correct.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: May 31, 1977
    Inventor: Frank G. Renz