Patents by Inventor Kenneth Bird Smith

Kenneth Bird Smith 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).

  • Process for Preparing a Particle Comprising a Biological Molecule and a Carrier Polymer
    Publication number: 20090318539
    Abstract: A process for preparing a particle comprising a biological molecule typically a DNA plasmid, and a carrier polymer, typically poly-lactic acid (PLA), in which an organic solvent solution of the biological molecule and the carrier polymer in an organic solvent medium, nearly saturated with the biological molecule, is prepared, then this solution is contacted with an antisolvent substance, typically supercritical carbon dioxide to separate a particle comprising the biological molecule and the carrier polymer. High loadings of the biological molecule in the particle can be achieved.
    Type: Application
    Filed: February 8, 2007
    Publication date: December 24, 2009
    Inventors: John Robertson, Kenneth Bird Smith