Patents Assigned to Prime Technology LLC
  • Security markers for determining composition of a medium
    Patent number: 7256398
    Abstract: A method of determining a component of a medium comprises illuminating the medium to excite a marker associated with the component. Detected photoluminescent emission from the marker in response to the excitation is compared with one or more emission profiles. The component is identified based on a match between the detected photoluminescent emission and at least one of the emission profiles.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: August 14, 2007
    Assignee: Prime Technology LLC
    Inventors: Gary A. Ross, Graham I. Johnson, Barrie Clark, Simon J. Forrest, Jeffrey Cegalis, William J. Greaves, Charles Q. Maney