Patents by Inventor Paul Murray Donaldson

Paul Murray Donaldson 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).

  • Apparatus and method for obtaining spectral information
    Patent number: 7787118
    Abstract: A method of obtaining spectral information comprises initiating at least a first excitation at a first excitation frequency and a second excitation at a second frequency in a surface enhanced sample. The method further comprises varying one of said first and second excitation frequencies, detecting an output signal having an output signal strength and identifying an output signal peak. In addition the method includes correlating the identified output signal with the first and second excitation frequencies to obtain spectral information, in which the surface enhanced sample substrate is configured to enhance the field corresponding to at least one of the first and second excitation, or output fields initiated in this sample.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: August 31, 2010
    Assignee: Imperial Innovations Limited
    Inventors: David Rupert Klug, Paul Murray Donaldson
  • APPARATUS AND METHOD FOR OBTAINING SPECTRAL INFORMATION
    Publication number: 20090268200
    Abstract: A method of obtaining spectral information comprises initiating at least a first excitation at a first excitation frequency and a second excitation at a second frequency in a surface enhanced sample. The method further comprises varying one of said first and second excitation frequencies, detecting an output signal having an output signal strength and identifying an output signal peak. In addition the method includes correlating the identified output signal with the first and second excitation frequencies to obtain spectral information, in which the surface enhanced sample substrate is configured to enhance the field corresponding to at least one of the first and second excitation, or output fields initiated in this sample.
    Type: Application
    Filed: May 23, 2007
    Publication date: October 29, 2009
    Applicant: IMPERIAL INNOVATIONS LIMITED
    Inventors: David Rupert Klug, Paul Murray Donaldson