Patents by Inventor David Mathew James

David Mathew James 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).

  • Patent number: 10526718
    Abstract: The present invention relates to the field of plating, including, but not limited to electroplating metallic articles, for example metallic discs that can be used as, or converted into, coins. Embodiments of the present invention described herein incorporate luminescent particles into plated metallic layers so that they can be detected for security purposes.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 7, 2020
    Assignee: The Royal Mint Limited
    Inventors: David Mathew James, Ellis Rhys Thomas, Gwilym Hibbert
  • Publication number: 20160122895
    Abstract: The present invention relates to the field of plating, including, but not limited to electroplating metallic articles, for example metallic discs that can be used as, or converted into, coins. Embodiments of the present invention described herein incorporate luminescent particles into plated metallic layers so that they can be detected for security purposes.
    Type: Application
    Filed: May 9, 2014
    Publication date: May 5, 2016
    Applicant: The Royal Mint Limited
    Inventors: David Mathew James, Ellis Rhys Thomas, Gwilym Hibbert