Patents by Inventor Eric Coffre

Eric Coffre 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).

  • Systems and methods for purifying unsaturated hydrocarbon(s), and compositions resulting therefrom
    Patent number: 8568513
    Abstract: A purification process has been developed that allows the removal of several different impurities from unsaturated hydrocarbons. The purification process uses various adsorbents and metal oxides or getters to accomplish the purification. The process is capable of removing the following impurities: SO2, H2O, O2, CO2 and CO.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: October 29, 2013
    Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Robert Benesch, Eric Coffre, Aurelie Grimberg, Tracey Jacksier, Malik Haouchine
  • Systems and methods for purifying unsaturated hydrocarbon(s), and compositions resulting therefrom
    Publication number: 20050247196
    Abstract: A purification process has been developed that allows the removal of several different impurities from unsaturated hydrocarbons. The purification process uses various adsorbents and metal oxides or getters to accomplish the purification. The process is capable of removing the following impurities: SO2, H2O, O2, CO2 and CO.
    Type: Application
    Filed: March 28, 2005
    Publication date: November 10, 2005
    Inventors: Robert Benesch, Eric Coffre, Aurelie Grimberg, Tracey Jacksier, Malik Haouchine
  • Plasma torch with an adjustable injector and gas analyzer using such a torch
    Patent number: 6236012
    Abstract: This plasma torch (10) for the excitation of a gas for the purpose of analyzing it comprises a tubular injector (12), intended to be connected to a source for supplying a gas to be analyzed, and an external cylindrical sleeve (14) coaxial with the injector (12) and defining a cylindrical annular channel (32) for supplying a plasma gas, intended to be connected to a corresponding supply source for the purpose of generating a plasma (P). The diameter of the injector (12) can vary.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: May 22, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Martine Carre, Eric Coffre, Christian Trassy
  • Process for the elementary analysis of a specimen by high frequency inductively coupled plasma mass spectrometry and apparatus for carrying out this process
    Patent number: 5229605
    Abstract: Improvement to the process of elementary analysis of a specimen by high frequency inductively coupled plasma mass spectrometry, by means of an apparatus including a torch for producing plasma from a plasma producing medium and for injecting the specimen in this plasma and an interface for taking a sample in the specimen, comprising two consecutive conical members disposed along the same axis except that the conical members have angles with different apices and are each provided with an axial orifice enabling a fraction of the specimen to be analyzed to pass therethrough. According to the invention, a given quantity of a make-up gas is added to the specimen which is injected into the plasma, the make-up gas having a high heat producing power, so as to raise the temperature of the plasma for locally heating the sampling conical members thereby preventing the components of the specimen which are present in the plasma from depositing on the conical members.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: July 20, 1993
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, V.G. Elemental Limited
    Inventors: Martine Bridenne, Eric Coffre, Robert Hutton, Yves Marot
  • Pressure reducer for pure gases
    Patent number: 4836242
    Abstract: A pressure reducer, especially adapted for the supply of very pure gas in the electronics industry, which comprises a final stage having an inlet, pressure-reducing means and a low-pressure outlet. A filter having a filtration threshold lower than a micron is interposed between the pressure-reducing means and the low pressure outlet.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: June 6, 1989
    Assignee: L'Air Liquide
    Inventors: Eric Coffre, Daniel Gary, Christophe di Giulio, Gerard Loiseau, Gerard Torelli