Patents by Inventor Marie-Agnès BENOIT

Marie-Agnès BENOIT 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: 10456491
    Abstract: A method of sterilizing an object with atomic nitrogen from a nitrogen plasma includes the steps of placing the object in a sterilization chamber and a sterilization half-cycle for sterilizing the object present in the chamber. The sterilization half-cycle comprises an alternation between stages of injecting atomic nitrogen into the chamber and of intermediate stages, each intermediate stage including at least one suction stage during which the chamber is evacuated.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 29, 2019
    Assignee: Societe Pour La Conception Des Applications Des Techniques Electroniques
    Inventors: Sandrine Villeger, Marie-Agnès Benoit, Pascal Regere
  • Patent number: 10456490
    Abstract: A method of sterilizing an object with atomic nitrogen from a nitrogen plasma comprises the steps of positioning the object in a sterilization chamber, and conditioning the object present in the chamber. The step of conditioning includes a first stage of injecting atomic nitrogen into the chamber, during which a first concentration of atomic nitrogen in the chamber is imposed, a suction stage performed after the first injection stage, during which the chamber is evacuated, and a second stage of injecting atomic nitrogen into the chamber that is performed after the suction stage, during which a second concentration of atomic nitrogen is imposed in the chamber. The method further comprises a sterilization step of sterilizing the object, performed after the conditioning, and includes injecting atomic nitrogen into the chamber, during which step a concentration of atomic nitrogen in the chamber is imposed that is greater than the first and second concentrations.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 29, 2019
    Assignee: Societe Pour La Conception Des Applications Des Techniques Electroniques
    Inventors: Sandrine Villeger, Marie-Agnès Benoit
  • Publication number: 20190184047
    Abstract: A method of sterilizing an object in a sterilization chamber comprises: evacuating the sterilization chamber at a pressure value; injecting a gaseous phase into at least one plasma generator via an ionization duct, the injected gaseous phase comprising dinitrogen with a volume content of dioxygen, a first ratio of the flow rate for injecting the gaseous phase in each plasma generator over the volume of the sterilization chamber being maintained at a value that is greater than or equal to 0.02 min?1, and a second ratio of the flow rate for injecting the gaseous phase into each plasma generator over the inside sectional area of the ionization duct being maintained at a value that is less than or equal to 102 m/min; the at least one plasma generator generating a plasma from the gaseous phase; and injecting a post-discharge stream resulting from the plasma into the previously-evacuated sterilization chamber.
    Type: Application
    Filed: January 25, 2018
    Publication date: June 20, 2019
    Inventors: Sandrine VILLEGER, Marie-Agnes BENOIT
  • Publication number: 20190142983
    Abstract: A method of sterilizing an object with atomic nitrogen from a nitrogen plasma includes the steps of placing the object in a sterilization chamber and a sterilization half-cycle for sterilizing the object present in the chamber. The sterilization half-cycle comprises an alternation between stages of injecting atomic nitrogen into the chamber and of intermediate stages, each intermediate stage including at least one suction stage during which the chamber is evacuated.
    Type: Application
    Filed: December 5, 2017
    Publication date: May 16, 2019
    Inventors: Sandrine Villeger, Marie-Agnès Benoit, Pascal Regere
  • Publication number: 20190142982
    Abstract: A method of sterilizing an object with atomic nitrogen from a nitrogen plasma comprises the steps of positioning the object in a sterilization chamber, and conditioning the object present in the chamber. The step of conditioning includes a first stage of injecting atomic nitrogen into the chamber, during which a first concentration of atomic nitrogen in the chamber is imposed, a suction stage performed after the first injection stage, during which the chamber is evacuated, and a second stage of injecting atomic nitrogen into the chamber that is performed after the suction stage, during which a second concentration of atomic nitrogen is imposed in the chamber. The method further comprises a sterilization step of sterilizing the object, performed after the conditioning, and includes injecting atomic nitrogen into the chamber, during which step a concentration of atomic nitrogen in the chamber is imposed that is greater than the first and second concentrations.
    Type: Application
    Filed: December 5, 2017
    Publication date: May 16, 2019
    Inventors: Sandrine Villeger, Marie-Agnès Benoit
  • Publication number: 20190117807
    Abstract: A sterilization device for sterilizing an object comprises a sterilization chamber defining a treatment zone in which the object for sterilizing is to be positioned; a nitrogen source; a plasma generator in communication with the nitrogen source; and a duct putting the plasma generator into communication with the sterilization chamber and through which a post-discharge stream resulting from a plasma produced by the plasma generator is to flow towards the sterilization chamber. The duct defines an injection orifice for injecting the post-discharge stream into the sterilization chamber. The device has a deflector for deflecting the post-discharge stream and positioned in the sterilization chamber facing a central portion of the injection orifice, upstream from the treatment zone. The deflector is configured to deflect the flow of a central portion of the post-discharge stream as introduced through the central portion of the injection orifice.
    Type: Application
    Filed: December 20, 2017
    Publication date: April 25, 2019
    Inventors: Thierry CASABONNE, Sandrine VILLEGER, Marie-Agnès BENOIT