Patents by Inventor Sal D'Amato

Sal D'Amato 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).

  • Holographic digital watermark
    Patent number: 7551750
    Abstract: A digital watermark which is incorporated, perceptibly or imperceptibly, into a diffractive device such as a hologram. When applied to protect and/or authenticate a document of value or a product, the device provides an increased degree of overt and covert security, and permits tracking of the sale, use or other parameters associated with the product and/or document of value.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: June 23, 2009
    Assignee: JDS Uniphase Corporation
    Inventors: Sal D'Amato, Brian Mentz, George Karcich
  • Holographic digital watermark
    Publication number: 20030223616
    Abstract: A digital watermark which is incorporated, perceptibly or imperceptibly, into a diffractive device such as a hologram. When applied to protect and/or authenticate a document of value or a product, the device provides an increased degree of overt and covert security, and permits tracking of the sale, use or other parameters associated with the product and/or document of value.
    Type: Application
    Filed: January 9, 2003
    Publication date: December 4, 2003
    Inventors: Sal D'Amato, Brian Mentz, George Karcich