Patents by Inventor William J. Van Handel

William J. Van Handel 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: 6149427
    Abstract: An apparatus and method for fabricating and fitting dentures that employs a Biteblock/Impression Tray and a Preset Teeth Carrying Tray. The Biteblock/Impression Tray is produced for both upper and lower dental arches with a wax biteblock attached to each, and shaped with flanges and a palate on the upper tray to accommodate the taking of impressions. The Preset Teeth Carrying Tray is produced for both upper and lower dental arches with the denture teeth mounted in their anatomical position to a plastic tray using wax that is festooned around the teeth and simulates the gum tissue. Each denture tooth is produced with a retention groove below the gum line and has the glaze removed from the roots prior to being mounted in the wax on the Preset Teeth Carrying Tray. Since the teeth are in their correct anatomical position with wax simulating the gum tissue, the teeth can be easily transferred as a unit to a stone model of the patient's dental arch for denture fabrication.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: November 21, 2000
    Assignee: William J. Van Handel
    Inventor: William J. Van Handel
  • Patent number: 5961325
    Abstract: An apparatus and method for fabricating and fitting dentures that employs a Biteblock/Impression Tray and a Preset Teeth Carrying Tray. The Biteblock/Impression Tray is produced for both upper and lower dental arches with a wax biteblock attached to each, and shaped with flanges and a palate on the upper tray to accommodate the taking of impressions. The Preset Teeth Carrying Tray is produced for both upper and lower dental arches with the denture teeth mounted in their anatomical position to a plastic tray using wax that is festooned around the teeth and simulates the gum tissue. Each denture tooth is produced with a retention groove below the gum line and has the glaze removed from the roots prior to being mounted in the wax on the Preset Teeth Carrying Tray. Since the teeth are in their correct anatomical position with wax simulating the gum tissue, the teeth can be easily transferred as a unit to a stone model of the patient's dental arch for denture fabrication.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: October 5, 1999
    Inventor: William J. Van Handel