Patents by Inventor Don W. Blackwell

Don W. Blackwell 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).

  • Door handle
    Patent number: D345901
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: April 12, 1994
    Assignee: The Atrium Door & Window Company
    Inventors: Randall S. Fojtasek, Don W. Blackwell, Richard T. Abbott