Patents by Inventor Joel C. Preston

Joel C. Preston 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).

  • Method for free-formation of a free-standing, three-dimensional body
    Patent number: 5510066
    Abstract: A preparing of a self-supporting or free-standing three-dimensional unitary structural body by a method including generating successively a plurality of cross-sectional layers of the body, one layer top of the other and with the layers joined together to form the body and with the generating of a cross-sectional layer comprising placing a plurality of drops of a liquid composition, containing a first reactant, in a pattern of discrete drops making up the cross-sectional layer and subsequently placing a plurality of discrete drops of other liquid composition, containing another reactant, in contact with the placed drops ion the pattern so that the first reactant and the other reactant react to provide a solid.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: April 23, 1996
    Assignee: Guild Associates, Inc.
    Inventors: David J. Fink, Thomas J. Ward, Joel C. Preston