Patent 7991498 was granted and assigned to Objet Geometries on August, 2011 by the United States Patent and Trademark Office.
Embodiments of the invention are directed to a method for printing a painted three-dimensional object. Each layer of the object is printed so that only the external circumference of the layer contains colored material. The building material used may be transparent, and a white colored material may be used as a barrier between the building material and the colored material.