Patents by Inventor R. Griffith Freeman

R. Griffith Freeman 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).

  • Surface enhanced spectroscopy-active composite nanoparticles comprising Raman-active reporter molecules
    Patent number: 8497131
    Abstract: Surface Enhanced Spectroscopy-Active Composite Nanoparticles (SACN) comprising: core/shell nanoparticles comprising nanoparticle cores covered with shells, wherein the cores and the shells may comprise the same or different materials; at least one Raman-active reporter molecule associated with said core/shell nanoparticle; and an SiO2 encapsulant which encapsulates the core/shell nanoparticle and the at least one Raman-active reporter molecule, are described.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: July 30, 2013
    Assignee: Becton, Dickinson and Company
    Inventors: Michael J. Natan, Sharron Gaynor Penn, R. Griffith Freeman, Gabriela Chakarova, William E. Doering, Ian D. Walton