Patents by Inventor Rodney F. Jude

Rodney F. Jude 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: 5302825
    Abstract: A method of forming a franking impression on a mail item and apparatus for forming the franking impression is disclosed. Material which is switchable from one stable state to another stable state by exposure to light of predetermined wavelength is deposited on the mail item while in one state and a selected region of the deposited material is exposed to light of the predetermined wavelength to effect switching of the selected region to the other state and thereby to represent franking or other secure information.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: April 12, 1994
    Assignee: Alcatel Business Systems Limited
    Inventors: Cyrus Abumehdi, Dennis T. Gilham, Raymond J. Herbert, Rodney F. Jude