Patents by Inventor Richard E. Donovan

Richard E. Donovan 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).

  • Tamper-proof ticket holder
    Patent number: 5328144
    Abstract: Tamper-proof ticket holder comprising two opposing fingers, both having the width of a ticket, the distance between the fingers being sufficient to allow depression of the fingers for insertion of the ticket; the fingers being sufficiently flexible to hold the ticket securely.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: July 12, 1994
    Assignee: Donovan Associates Inc.
    Inventor: Richard E. Donovan