Patents by Inventor Graham R. Higgins

Graham R. Higgins 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).

  • Value transfer system
    Patent number: 5440634
    Abstract: A plurality of electronic purses communicate with each other to transfer values in transactions off-line from a main computer. A transfer message protocol of a transaction between electronic purses includes a commitment message to constitute a proof of posting. This allows interruption of a transaction before the value message itself is set. Escrow type payments and batch processing are facilitated.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: August 8, 1995
    Assignee: Jonhig Limited
    Inventors: Timothy L. Jones, Graham R. Higgins