Patents by Inventor Philippe A. Coignet

Philippe A. Coignet 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).

  • Patent number: 9795927
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 24, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges
    Inventors: Henri Chevrel, Benjamin J. Jurcik, Jr., Philippe A. Coignet, Raja Swaidan, Dean W. Kratzer
  • Publication number: 20170239610
    Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.
    Type: Application
    Filed: April 30, 2016
    Publication date: August 24, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Pascal TESSIER, Philippe COIGNET, Benjamin JURCIK, Ryan ADELMAN
  • Publication number: 20170239611
    Abstract: Entrained metal hydride particle are removed from a flow of hydrogen from a Mg-based hydride storage unit using not only a particle filter but improvements for reducing or eliminating drastic changes in flow. In addition to or alternative to removal of entrained metal hydride particles, methane produced by reaction of hydrogen with steel in a metal hydride system preferably operated above 350° C. is removed downstream of the Mg-based hydride storage unit using an adsorption cartridge, preferably containing activated carbon.
    Type: Application
    Filed: April 30, 2016
    Publication date: August 24, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Pascal TESSIER, Philippe COIGNET, Benjamin JURCIK, Ryan ADELMAN
  • Publication number: 20160184775
    Abstract: A carbon molecular sieve (CMS) membrane is made by pyrolyzing a polymeric precursor membrane in a pyrolysis atmosphere containing a sulfur-containing compound.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 30, 2016
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Henri CHEVREL, Benjamin J. JURCIK, JR., Philippe A. COIGNET, Raja SWAIDAN, Dean W. KRATZER
  • Publication number: 20130344405
    Abstract: A method of using a hybrid humidifier fuel cell for ensuring adequate humidification of a reactant gas stream in a fuel cell stack, during both steady-state, as well as transient operation. The device provides for improved performance through the use a primary humidification and a secondary humidification.
    Type: Application
    Filed: November 16, 2012
    Publication date: December 26, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour l'Etude et l'Expoitation des Procedes Georges Claude
    Inventors: Philippe A. COIGNET, Rajeev S. PRABHAKAR
  • Publication number: 20130344404
    Abstract: A hybrid humidifier fuel cell for ensuring adequate humidification of a reactant gas stream in a fuel cell stack, during both steady-state, as well as transient operation. The device provides for improved performance through the use a primary humidification and a secondary humidification.
    Type: Application
    Filed: November 16, 2012
    Publication date: December 26, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour l'Etude et l'Expoitation des Procedes Georges Claude
    Inventors: Philippe A. COIGNET, Rajeev S. Prabhakar
  • Patent number: 8430133
    Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 30, 2013
    Assignee: American Air Liquide, Inc.
    Inventors: Philippe A. Coignet, Pascal J. Tromeur, Justin J. Wang
  • Publication number: 20120291915
    Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 22, 2012
    Applicant: American Air Liquide, Inc.
    Inventors: Philippe A. COIGNET, Pascal J. Tromeur, Justin J. Wang
  • Publication number: 20120291913
    Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 22, 2012
    Applicant: American Air Liquide, Inc.
    Inventors: Philippe A. COIGNET, Pascal J. Tromeur, Justin J. Wang
  • Patent number: 8235076
    Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: August 7, 2012
    Assignee: American Air Liquide, Inc.
    Inventors: Philippe A. Coignet, Pascal J. Tromeur, Justin J. Wang
  • Publication number: 20100193067
    Abstract: An enclosure is filled with a filling gas according to the disclosed method. An enclosure is provided having an interior, a width, a height, a thickness, and fluid filling and exit holes fluidly communicating with the interior. Filling of the enclosure is commenced by directing a flow of the filling gas at a filling flow rate into the fluid filling hole. An oxygen concentration of gas exiting the fluid exit hole is sensed. The filling of the enclosure is stopped when the sensed oxygen concentration reaches a threshold concentration, wherein the threshold oxygen concentration and/or the filling flow rate are selected by a Decision Support Tool based upon the width, height, and/or the thickness.
    Type: Application
    Filed: May 26, 2009
    Publication date: August 5, 2010
    Inventors: Philippe A. COIGNET, Pascal J. TROMEUR, Justin J. WANG
  • Publication number: 20090007779
    Abstract: A feed gas is separated into a CO2-lean stream and a CO2-enriched stream at a CO2 enriching unit. The CO2-enriched gas is fed to a greenhouse to enhance plant growth. The feed gas may include air and/or vent gas from the greenhouse.
    Type: Application
    Filed: December 28, 2007
    Publication date: January 8, 2009
    Inventors: Philippe A. COIGNET, Rajeev S. PRABHAKAR
  • Publication number: 20080179199
    Abstract: A gas sensor system includes a membrane electrode assembly including a polymer electrolyte membrane and electrode layers disposed on opposing sides of the membrane, where an anode side of the sensor is defined at first side of the assembly and a cathode side of the sensor is defined at a second side of the assembly . The gas sensor is configured to detect a gas in an environment (e.g., a housing, a pipe, an open environment, etc.) by measuring an open circuit voltage between the anode and the cathode sides of the assembly. The gas sensor provides a rapid response that measures gas concentration in the environment and is further durable, reliable and relatively inexpensive to manufacture.
    Type: Application
    Filed: June 25, 2007
    Publication date: July 31, 2008
    Inventors: Philippe A. Coignet, Samuel E. Moore
  • Publication number: 20080145722
    Abstract: A gas sensor system includes a membrane electrode assembly including a polymer electrolyte membrane and electrode layers disposed on opposing sides of the membrane, where an anode side of the sensor is defined at first side of the assembly and a cathode side of the sensor is defined at a second side of the assembly. The gas sensor is configured to detect a gas in an environment (e.g., a housing, a pipe, an open environment, etc.) by measuring an open circuit voltage between the anode and the cathode sides of the assembly. The gas sensor provides a rapid response that measures gas concentration in the environment and is further durable, reliable and relatively inexpensive to manufacture.
    Type: Application
    Filed: June 25, 2007
    Publication date: June 19, 2008
    Inventors: Philippe A. Coignet, Samuel E. Moore