Patents by Inventor Donald E. Willis

Donald E. Willis 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).

  • Bottle-overcap combination
    Patent number: 4544073
    Abstract: A bottle and overcap combination in which the combination has a unitary, uninterrupted cylindrical appearance, the combination also being provided with tamper resistant features.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: October 1, 1985
    Assignee: Bristol-Myers Company
    Inventor: Donald E. Willis