Patents by Inventor Rebecca K. Santiago

Rebecca K. Santiago 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).

  • Ytterbium-barium silicate radiopaque glasses
    Patent number: 7175700
    Abstract: A family of radiopaque glasses comprising silicon dioxide (15–30%), ytterbium oxide (5–35%), barium oxide (30–50%) and fluoride (5–20%), all by weight. The family of glasses all exhibit high radiopacity with refractive indices varying from 1.508–1.592 and translucency ranging from clear to moderately opaque. These glasses can be incorporated into dental composites to provide radiopaque dental restoratives with a desired translucence and appearance.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: February 13, 2007
    Assignee: Den-Mat Corporation
    Inventors: Thomas C. Chadwick, Rebecca K. Santiago