Patents by Inventor David W. Dwight

David W. Dwight 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 Raman spectroscopy (SERS) substrates exhibiting uniform high enhancement and stability
    Patent number: 7450227
    Abstract: An improved substrate for Raman spectroscopy of an analyte comprises a porous metal film. Enhancement factors and uniformity of the substrate can be enhanced by electrochemical roughening of the film. Improved sensors and spectrometers using such substrates are also described.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: November 11, 2008
    Assignee: The Penn State Research Foundation
    Inventors: David W. Dwight, David L. Allara