Patents by Inventor William Dean Plummer

William Dean Plummer 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).

  • Techniques for Dynamic Object Detection
    Publication number: 20260023191
    Abstract: There is provided an object scanning apparatus. The object scanning apparatus may include a THz source emitting a THz beam; an optical system for directing the THz beam; a zone for inspecting objects wherein the optical beam interacts with the object; a motion device for changing the spatial or temporal interaction of the object and optical beam; at least one transducer, the at least one transducer including an imaging transducer for converting the optical beam energy after interaction with the object to an electronic image; and a processor for performing processing of the image for use in characterization of the object or its interior contents or composition.
    Type: Application
    Filed: September 25, 2025
    Publication date: January 22, 2026
    Inventors: William Dean Plummer, Charles McAlister Marshall, Francois Berthiaume, Linda Marchese, Marc Terroux, Alexander Georg Sappok
  • Techniques for dynamic object detection
    Patent number: 12455394
    Abstract: There is provided an object scanning apparatus. The object scanning apparatus may include a THz source emitting a THz beam; an optical system for directing the THz beam; a zone for inspecting objects wherein the optical beam interacts with the object; a motion device for changing the spatial or temporal interaction of the object and optical beam; at least one transducer, the at least one transducer including an imaging transducer for converting the optical beam energy after interaction with the object to an electronic image; and a processor for performing processing of the image for use in characterization of the object or its interior contents or composition.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: October 28, 2025
    Assignee: RaySecur, Inc.
    Inventors: William Dean Plummer, Charles McAlister Marshall, Francois Berthiaume, Linda Marchese, Marc Terroux, Alexander Georg Sappok