Patents by Inventor David E. Simmons

David E. Simmons 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: 5597303
    Abstract: The invention relates to a device and method for confirming bite registration for dental implants. The device has an elongated plate having one or more openings formed at an angle to a longitudinal axis of the plate. A hollow post has an exterior wall corresponding in size and shape to the openings in the plate so as to fittingly slide through a selected plate opening. An inner aperture in the post is suitable for engaging with a portion of the dental implant that extends above the healed gumline of a patient. When the post is engaged with the implant, and the plate is placed over the post, an outer surface of the plate is oriented in a substantially parallel relationship to an occlusal plane. The post and the plate are secured together to register orientation of the dental implant in relation to the occlusal plane.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: January 28, 1997
    Inventor: David E. Simmons
  • Patent number: 4162625
    Abstract: A method and apparatus for forming dental matrices and copings is disclosed. The apparatus provides a first and a second compression member, each of which is provided with a pliable surface thereon. One of the compression members has a point for the attachment of a conventionally formed tooth die thereto, upon which a sheet of conventional coping material can be placed. The compression members are attachable to a jacking apparatus which imparts relative motion to the two compression members urging them together and compressing the tooth die therebetween the sheet of coping material conforming to the shape of the tooth die itself. In the method of the present invention, the first and second compression members are placed a distance apart, and the tooth die attached to one of the compression members at its pliable surface.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: July 31, 1979
    Inventor: David E. Simmons