Patents by Inventor Clive Antony Marchant

Clive Antony Marchant 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).

  • Method of identifying a material
    Patent number: 9618454
    Abstract: The invention concerns a method of measuring the amount of a particular SERS-active taggant compound in a sample of a material which includes the steps of adding an internal standard containing an isotopically-altered version of said SERS-active taggant compound to the sample, contacting the sample/internal standard mixture with a SERS substrate then subjecting the mixture and SERS substrate to Raman spectroscopy. The concentration of SERS-active taggant compound in the sample is then calculated from the ratio of (i) the Raman spectroscopy detector response to the SERS-active taggant compound to (ii) the Raman spectroscopy detector response to the internal standard.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: April 11, 2017
    Assignee: JOHNSON MATTHEY PLC
    Inventors: Clive Antony Marchant, Vincent Brian Croud
  • METHOD OF IDENTIFYING A MATERIAL
    Publication number: 20130271758
    Abstract: The invention concerns a method of measuring the amount of a particular SERS-active taggant compound in a sample of a material which includes the steps of adding an internal standard containing an isotopically-altered version of said SERS-active taggant compound to the sample, contacting the sample/internal standard mixture with a SERS substrate then subjecting the mixture and SERS substrate to Raman spectroscopy. The concentration of SERS-active taggant compound in the sample is then calculated from the ratio of (i) the Raman spectroscopy detector response to the SERS-active taggant compound to (ii) the Raman spectroscopy detector response to the internal standard.
    Type: Application
    Filed: October 21, 2011
    Publication date: October 17, 2013
    Applicant: JOHNSON MATTHEY PLC
    Inventors: Clive Antony Marchant, Vincent Brian Croud