Patents by Inventor Franciscus Leonardus Oosterhof

Franciscus Leonardus Oosterhof 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).

  • Magnifying glass as well as a spectacle frame provided with one or two such magnifying glasses
    Patent number: 7524058
    Abstract: The invention generally relates to a magnifying glass for a person having limited vision in one or both eyes, wherein the magnifying glass comprises a lens body with a front curve for focusing light rays incident upon the lens body onto the eye. The invention also relates to a spectacle frame provided with one or two magnifying glasses of the invention. The invention is particularly useful to patients suffering from macular degeneration.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: April 28, 2009
    Assignee: E-Scoop B.V.
    Inventor: Franciscus Leonardus Oosterhof