Patents by Inventor Damien James GARDINER

Damien James GARDINER 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, METHOD OF MAKING A SECURITY DEVICE AND METHOD OF AUTHENTICATING A PRODUCT
    Publication number: 20200276854
    Abstract: A method of producing a security device (60) is disclosed. The method comprises inkjet printing a liquid crystal material onto a first region (61) of a substrate and ink jet printing the same liquid crystal material onto a second region (62) of the substrate. The volume of the liquid crystal material printed per unit area of the substrate in the first region of the substrate is different to the volume of the liquid crystal material printed per unit area of the substrate in the second region of the substrate such that the wavelength of the peak reflectance of the liquid crystal material on the first region is different to the wavelength of the peak reflectance of the liquid crystal material on the second region.
    Type: Application
    Filed: January 16, 2018
    Publication date: September 3, 2020
    Inventors: Damien James GARDINER, Duncan William John MCCALLIEN, Felicity Jane ROBERTS