Patents by Inventor Benjamin K. Boyajian

Benjamin K. Boyajian 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).

  • Palladium-based dental alloy containing indium and tin
    Patent number: 4319877
    Abstract: A non-discoloring palladium-based alloy, free of silver or gold, suitable for fusion to dental porcelain compositions consists essentially of 75-85% by weight of Pd, 5-10% by weight of In, 5-10.5% by weight of Sn, up to 7.5% by weight of Co, Cr or Ni and up to 0.25% by weight of Si. Inclusion of 0.2-0.7% by weight of Ru improves the physical and mechanical properties of the alloy.
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: March 16, 1982
    Inventor: Benjamin K. Boyajian