Patents by Inventor Margaret Van Velzen

Margaret Van Velzen 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).

  • Foldable lunch box liner
    Patent number: D563155
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: March 4, 2008
    Inventors: Yvonne Wyllie, Margaret Van Velzen