Patents by Inventor Simon Donald MacKay

Simon Donald MacKay 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).

  • Ink composition
    Patent number: 5783108
    Abstract: An ink composition comprising an ultraviolet radiation curable carrier incorporating a coloured base pigment which emits visible radiation of a first wavelength, and a quantity of luminescent pigment which emits visible radiation by phosphorescent decay or under illumination by long-wave ultraviolet radiation at a second wavelength wherein the concentration of said luminescent pigment is higher than that required just to ensure the visible escape of luminescent radiation from said composition.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: July 21, 1998
    Assignee: Zone Properties Pty Ltd
    Inventor: Simon Donald MacKay