Patents by Inventor Earl J. Colbert

Earl J. Colbert 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).

  • Orthodontic device
    Patent number: 4373914
    Abstract: Orthodontic device used to rotate teeth back to their normal position by using a compressible rubber device in combination with the usual brackets and wires.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: February 15, 1983
    Inventor: Earl J. Colbert
  • Orthodontic bracket
    Patent number: D373638
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: September 10, 1996
    Inventor: Earl J. Colbert