Patents by Inventor John Haslop

John Haslop 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).

  • Security device
    Publication number: 20070076279
    Abstract: A security device comprises a holographic or diffractive optically variable effect generating structure which, when viewed normally i.e. perpendicularly to the plane of the device, replays at least one composite image, the composite image being defined by at least a pair of discrete image elements, the structure being such that at least two of the discrete image elements of the composite image have different optimal replay angles.
    Type: Application
    Filed: November 3, 2004
    Publication date: April 5, 2007
    Applicant: DE LA RUE INTERNATIONAL LIMITED
    Inventors: Brian Holmes, John Haslop