Patents by Inventor Robert A. Barry

Robert A. Barry 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).

  • VISCOELASTIC INK FOR DIRECT WRITING OF HYDROGEL STRUCTURES
    Publication number: 20130084449
    Abstract: A viscoelastic ink for direct writing of hydrogel structures includes a long chain polymer and a photopolymerizable moiety, which may be a photopolymerizable monomer or a photopolymerizable group attached to the long chain polymer. The ink may also include a crosslinking agent, a photoinitiator, and water. The long chain polymer is present at a concentration greater than a critical overlap concentration c* of the long chain polymer in the ink.
    Type: Application
    Filed: March 22, 2011
    Publication date: April 4, 2013
    Inventors: Jennifer A. Lewis, Robert F. Shepherd, Robert A. Barry, Sara T. Parker, Jennifer N.H. Shepherd, Pierre Wiltzius, Ralph G. Nuzzo