Patents by Inventor Leonard Frantz

Leonard Frantz 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).

  • Patent number: 4299569
    Abstract: An orthodontic bracket for straightening teeth has a plastic base member for cementing to a tooth with a bracket portion extending outwardly thereof with a slot thereacross. The slot is substantially wholly contained in an elongated metal insert lengthwise thereof molded immovably into said plastic. The slot is rectangular in cross section for receiving a similarly shaped arch wire for controlling the position of the tooth anteroposteriorly, laterally and longitudinally on its long axis.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: November 10, 1981
    Inventor: Leonard Frantz