Patents by Inventor Richard F. Tynan

Richard F. Tynan 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).

  • Article identification material and method and apparatus for using it
    Patent number: 4540595
    Abstract: An ink that fluoresces in the near infrared is used to mark documents such as bank checks for automatic identification. Markings with this ink are reliably detectable, even in the presence of other markings commonly found on such documents. The preferred fluorescent material of our invention is a phenoxazine dye 3,7-BIS(diethylamino) phenoxazonium nitrate.
    Type: Grant
    Filed: October 7, 1982
    Date of Patent: September 10, 1985
    Assignee: International Business Machines Corporation
    Inventors: Mario A. Acitelli, Richard F. Tynan, Alan R. Wayson