Patents by Inventor Joost Elffers

Joost Elffers 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).

  • Publication number: 20060026875
    Abstract: A novel shadow display apparatus includes a three-dimensional object that is implemented for projecting shadows on a surface when a light source is directed, and which is of an abstract shape such that an observer viewing the object at locations other than at the light source would not be able to identify what the projected shadow would be from the object/structure. A methodology for designing such a shadow display object or structure having an abstract three-dimensional shape, such as the shape of a tree or bush having branch members, and from which an observer viewing the object at locations other than at the light source would not be able to identify what the projected shadow would be from the tree-shaped object or structure. The apparatus may be used for displaying shadow images of symbols, both religious and secular, and may be of any scale.
    Type: Application
    Filed: August 9, 2004
    Publication date: February 9, 2006
    Inventor: Joost Elffers