Patents by Inventor Emeric Frejafon

Emeric Frejafon 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 and system for analyzing particles in cold plasma
    Patent number: 9506868
    Abstract: The invention relates to a method of analyzing particles, in particular particles of diameter less than 1 ?m, the method comprising the following steps: firing laser shots into a cold plasma (45) at low pressure; using an optical spectrometer device (60) to acquire emission spectra of the light emitted by the plasma as a result of the laser shots, in such a manner that for each acquired spectrum, an acquisition period begins no later than 100 ns after firing the laser shot; and analyzing the particles present in the plasma on the basis of the emission spectra. A system for detecting and/or analyzing particles by performing the method.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 29, 2016
    Assignees: Centre National De La Recherche Scientifique, Universite D'Orleans
    Inventors: Laïfa Boufendi, Laurent Meyer, Christophe Dutouquet, Emeric Frejafon, Gaétan Wattieaux
  • METHOD AND SYSTEM FOR ANALYSING PARTICLES IN COLD PLASMA
    Publication number: 20150241357
    Abstract: The invention relates to a method of analyzing particles, in particular particles of diameter less than 1 ?m, the method comprising the following steps: firing laser shots into a cold plasma (45) at low pressure; using an optical spectrometer device (60) to acquire emission spectra of the light emitted by the plasma as a result of the laser shots, in such a manner that for each acquired spectrum, an acquisition period begins no later than 100 ns after firing the laser shot; and analyzing the particles present in the plasma on the basis of the emission spectra. A system for detecting and/or analyzing particles by performing the method.
    Type: Application
    Filed: September 27, 2013
    Publication date: August 27, 2015
    Applicant: Centre National De La Recherche Scientifique
    Inventors: Laïfa Boufendi, Laurent Meyer, Christophe Dutouquet, Emeric Frejafon, Gaétan Wattieaux