Patents by Inventor Nicolas Dupont

Nicolas Dupont 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: 11135443
    Abstract: System (1) for treatment by photodynamic therapy comprising an illuminating member (6) which comprises: —a core (35) carrying a light emitting surface (37), and —a hollow sheath (10) adapted to receive the core (35) with the light emitting surface (37) arranged within a balloon (11), the balloon (11) comprising a wall (12) which has an inner surface delimiting an internal space, and an outer surface, the wall (12) being flexible, wherein the internal space of the balloon (11) has a variable capacity, the wall (12) of the balloon (11) being elastically extendible and the balloon (11) presenting a plurality of inflated states in each of which the internal space is filled with a volume of light diffusing solution, and wherein the system further comprises a support provided with a transfer function relating the volume of light diffusing solution of each inflated state with at least one of a corresponding distribution of light power at the outer surface of the wall (12) of the balloon (11) and a corresponding time
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 5, 2021
    Assignees: INSERM (Institut National de la Santé et de la Recherche Médicale), Université de Lille, Centre Hospitalier Regional et Universitaire de Lille (CHRU)
    Inventors: Maximilien Vermandel, Clement Dupont, Nicolas Reyns, Pascal Deleporte, Serge Mordon, Nacim Betrouni
  • Patent number: 10532338
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: January 14, 2020
    Assignee: Arkema Inc.
    Inventors: Michael S. Decourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Publication number: 20190201862
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Michael S. DeCourcy, John L. STEINBACH, Nicolas DUPONT, Roger L. ROUNDY
  • Patent number: 10286374
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 14, 2019
    Assignee: Arkema Inc.
    Inventors: Michael S. DeCourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Publication number: 20180078919
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Inventors: Michael S. DeCourcy, John L. STEINBACH, Nicolas DUPONT, Roger L. ROUNDY
  • Patent number: 9861948
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: January 9, 2018
    Assignee: Arkema Inc.
    Inventors: Michael S. Decourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Publication number: 20160303532
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Application
    Filed: June 29, 2016
    Publication date: October 20, 2016
    Inventors: Michael S. DeCourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Patent number: 9440903
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: September 13, 2016
    Assignee: Arkema Inc.
    Inventors: Michael S. DeCourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Patent number: 9126166
    Abstract: The present invention relates to a method for filling a multitube catalytic reactor and to a set of inserts suited to implementing this method. The method of the invention is based on the use of inserts of different types allowing superposed layers of catalysts to be placed in the reaction compartments. The heads of the inserts are visually distinct according to the type of insert, making it possible to avoid filling errors and thus allowing the various layers of catalyst to be filled reliably and simultaneously on a reactor scale.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: September 8, 2015
    Assignee: Arkema France
    Inventors: Nicolas Dupont, Emmanuel Lambert, Arnaud Souet, David Urbaniak
  • Publication number: 20140290788
    Abstract: The present invention relates to a method for filling a multitube catalytic reactor and to a set of inserts suited to implementing this method. The method of the invention is based on the use of inserts of different types allowing superposed layers of catalysts to be placed in the reaction compartments. The heads of the inserts are visually distinct according to the type of insert, making it possible to avoid filling errors and thus allowing the various layers of catalyst to be filled reliably and simultaneously on a reactor scale.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 2, 2014
    Applicant: ARKEMA FRANCE
    Inventors: Nicolas DUPONT, Emmanuel LAMBERT, Arnaud SOUET, David URBANIAK
  • Publication number: 20130274508
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Application
    Filed: October 16, 2012
    Publication date: October 17, 2013
    Applicant: Arkema Inc.
    Inventors: Michael S. DeCourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Publication number: 20130131380
    Abstract: The invention relates to a process of the selective oxidation of carbon monoxide to carbon dioxide present in a gas mixture comprising at least one hydrocarbon or a hydrocarbon derivative, and to its integration into a process for producing hydrocarbon derivatives. The process according to the invention comprises a step that consists in bringing said gas mixture into contact with a solid catalyst capable of oxidizing carbon monoxide to carbon dioxide at a chosen temperature, characterized on that said step is carried out in a fluidized bed.
    Type: Application
    Filed: March 29, 2011
    Publication date: May 23, 2013
    Applicant: Arkema France
    Inventors: Jean-Luc Dubois, Nicolas Dupont, Gregory Patience
  • Publication number: 20120277464
    Abstract: The invention relates to a method for producing a flow containing at least one alkene derivative, including the following steps: a step a) of reacting a flow containing one or more alkenes and one or more alkanes—the ratio of said alkanes to said alkenes being at least 1 by volume—with a flow containing mainly oxygen, in order to obtain at least one converted flow containing at least said alkene derivative; a step b) of separating the converted flow produced in step a) into at least said flow containing at least said alkene derivative and a residual flow containing mainly one or more hydrocarbons and one or more inert compounds; and a step c) of separating all or a portion of said residual flow by means of permeation into at least one first flow containing mainly one or more inert compounds and a second flow containing mainly one or more hydrocarbons.
    Type: Application
    Filed: October 27, 2010
    Publication date: November 1, 2012
    Applicants: Arkema France, L'Air Liquide Societe Anonyme Puor L'Exploitation des Procedes Georges Claude
    Inventors: Christophe Claeys, Alberto Garcia, Sylvain Gerard, Nicolas Dupont, Jean Luc Dubois, Serge Tretjak, Nabil Tlili
  • Publication number: 20120210870
    Abstract: The invention relates to a method for purifying a specific gas stream containing one or more components to be recovered, one or more impurities to be eliminated and one or more poisons, for a unit for separation by means of permeation, including the following steps: a) in a unit for separation by means of absorption, separate from said unit for separation by means of permeation, the specific gas stream is placed in contact with one or more liquid solvents suitable and intended for selectively absorbing said poisons in order to obtain at least one first gas stream depleted of said poisons and a second liquid stream; and b) said first gas stream produced in step a) is separated in said unit for separation by means of permeation, at a specific absolute pressure P, into at least one third gas stream depleted of impurities and a fourth stream; the separation performed in step a) being carried out at an absolute pressure of between 50% and 200% of said specific absolute pressure P.
    Type: Application
    Filed: October 27, 2010
    Publication date: August 23, 2012
    Applicants: ARKEMA FRANCE, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Sylvain Gerard, Nicolas Dupont, Jean-Luc Dubois, Serge Tretjak, Nabil Tlili