Patents by Inventor Anthony L. Harwell

Anthony L. Harwell 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).

  • Distalizing spring
    Patent number: 5505616
    Abstract: A device for distalizing maxillary molars. The device comprises a spring attached to a tubular head and an attached ligature tie wire. The device is attached by a ligature tie wire at the mesial end to a hook or eyelet on a maxillary bicuspid and pushes at the distal end on a buccal tube or bracket attached to a maxillary molar. The compressed spring creates a force that tends to move the molars distally.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: April 9, 1996
    Inventor: Anthony L. Harwell