Patents by Inventor David G. Boon

David G. Boon 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: 4802850
    Abstract: A dental-porcelain color matching system comprises a plurality of dental-porcelain beads arranged in a closely spaced manner on a common support so that their colors vary in an ordered manner. The beads are carried at the ends of arms which are either flexible or pivotable on a main trunk of the support so that a bead to be located against a patent's natural tooth for color comparison therewith can be moved away from other beads on the support to avoid color interference therefrom. Additional beads provided have varying translucent enamels on opaque porcelain bases to allow the color, translucency and depth of enamel of a patient's teeth to be gauged. The beads also vary in shape from that of an unworn natural incisor tooth with a ridged cutting edge to that of a worn incisor tooth with a smooth cutting edge.
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: February 7, 1989
    Inventor: David G. Boon