Patents by Inventor Robert P. Hagen

Robert P. Hagen 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).

  • Wallsaver
    Publication number: 20210140237
    Abstract: The invention relates generally to an apparatus for attachment to a ladder, which allows placement of the ladder against a variety of surfaces without damaging the surface. It also has features which allow the ladder to be used more safely.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 13, 2021
    Inventor: Robert P. Hagen