Patents by Inventor Patrick Thoral

Patrick Thoral 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 device for sampling gaseous compounds contained in a gas steam, notably in diluted exhaust gases from an internal-combustion engine
    Publication number: 20050109128
    Abstract: The present invention relates to a method and to a device for sampling gaseous compounds contained in a gas stream, notably in diluted exhaust gases from an internal-combustion engine. According to the invention, the method consists in providing passage of the gas stream through at least one sampling channel (26, 26a; 80, 80a) containing an adsorbent that traps the polycyclic aromatic hydrocarbons in gaseous form.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 26, 2005
    Inventors: Michel Pasquereau, Jean-Francois Papagni, Patrick Thoral, Richard Levesque, Laurent Dayde