Patents by Inventor Dennis C. W. Wilson

Dennis C. W. Wilson 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).

  • Dye filled security seal
    Patent number: 4326741
    Abstract: A security seal for providing an indication of unauthorized access to a sealed object includes an elongate member to be entwined in the object such that access is denied unless the member is removed. The elongate member has a hollow, pressurizable chamber extending throughout its length that is filled with a permanent dye under greater than atmospheric pressure. Attempts to cut the member and weld it together are revealed when dye flows through a rupture in the chamber wall and stains the outside surface of the member.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: April 27, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Dennis C. W. Wilson