Patents by Inventor Hans Gunzel

Hans Gunzel 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 apparatus
    Patent number: 4627816
    Abstract: The wire of an orthodontic appliance is attached at either end to a tooth by means of a lock secured to a band passed around the tooth and having a U-shaped recess into which a retaining spring is set so that when the latch holding the wire is inserted, the ends of the spring catch in notches on the latch thereby affording secure attachment and easy removal and replacement of the wire.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: December 9, 1986
    Inventor: Hans Gunzel