Patents by Inventor Didier Payen

Didier Payen 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: 11919260
    Abstract: A process for shaping, by compaction, a fibrous structure obtained by three-dimensional or multilayer weaving between a plurality of layers of warp yarns and a plurality of layers of weft yarns. The yarns of each plurality of layers of warp yarns and layers of weft yarns are coated with a sizing composition. The shaping includes a pre-compaction stage followed by a stage of final compaction of the fibrous structure. During pre-compaction and final compaction, the fibrous structure is at a temperature greater than or equal to the softening temperature of the sizing composition. The process further includes the cooling of the fibrous preform obtained after final compaction of the fibrous structure.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 5, 2024
    Assignee: SAFRAN
    Inventors: Christophe Ravey, Olivier Foussard, Nicolas Pierre Lanfant, Didier Payen, Adrien Touze, Romain Venat
  • Patent number: 11247416
    Abstract: Methods for manufacturing a turbomachine composite part, such as a fan blade, are provided. The composite part has a fibrous structure with a three-dimensional fibrous preform coated with a surface fibrous web, and which is embedded in a polymer matrix The methods include: forming the surface web in a cavity of a mold in order to shape it, wetting and forming the preform on the surface web in order to shape it, and closing the mold, drying the fibrous structure, and injecting thermosetting resin into the mold in order to form said polymer matrix. The surface web is wetted before and/or during the forming thereof.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: February 15, 2022
    Assignee: SAFRAN
    Inventors: Sébastien Dunaud, Dominique Marie Christian Coupe, Olivier Foussard, Didier Payen, Adrien Touze
  • Publication number: 20210339485
    Abstract: Methods for manufacturing a turbomachine composite part, such as a fan blade, are provided. The composite part has a fibrous structure with a three-dimensional fibrous preform coated with a surface fibrous web, and which is embedded in a polymer matrix The methods include: forming the surface web in a cavity of a mold in order to shape it, wetting and forming the preform on the surface web in order to shape it, and closing the mold, drying the fibrous structure, and injecting thermosetting resin into the mold in order to form said polymer matrix. The surface web is wetted before and/or during the forming thereof.
    Type: Application
    Filed: August 23, 2019
    Publication date: November 4, 2021
    Applicant: SAFRAN
    Inventors: Sébastien Dunaud, Dominique Marie Christian Coupe, Olivier Foussard, Didier Payen, Adrien Touze
  • Publication number: 20210323250
    Abstract: A process for shaping, by compaction, a fibrous structure obtained by three-dimensional or multilayer weaving between a plurality of layers of warp yarns and a plurality of layers of weft yarns. The yarns of each plurality of layers of warp yarns and layers of weft yarns are coated with a sizing composition. The shaping includes a pre-compaction stage followed by a stage of final compaction of the fibrous structure. During pre-compaction and final compaction, the fibrous structure is at a temperature greater than or equal to the softening temperature of the sizing composition. The process further includes the cooling of the fibrous preform obtained after final compaction of the fibrous structure.
    Type: Application
    Filed: August 27, 2019
    Publication date: October 21, 2021
    Inventors: Christophe RAVEY, Olivier FOUSSARD, Nicolas Pierre LANFANT, Didier PAYEN, Adrien TOUZE, Romain VENAT
  • Patent number: 9943240
    Abstract: A non-invasive method for determining the tissue perfusion state in a patient, by measuring the variations in the skin CO2 pressure and in the perfusion index of the patient during the conducting of a localized hyperthermia test.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: April 17, 2018
    Assignee: Assistance Publique—Hopitaux de Paris
    Inventors: Fabrice Vallee, Joaquim Mateo, Didier Payen De La Garanderie
  • Patent number: 9416392
    Abstract: The present invention pertains to a method for in vitro diagnosing a bacterial infection in a biological fluid selected amongst cerebrospinal fluid, ascitic fluid, pericardial fluid, pleural fluid, urine and synovial fluid, based on the measure, in a sample of said fluid, of the production of reactive oxygen species (ROS); a high level of ROS production is indicative of the presence of activated polymorphonuclear neutrophils (PMNs) in said fluid, which in turn is a hallmark of bacterial infection.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: August 16, 2016
    Assignee: ASSISTANCE PUBLIQUE—HOPITAUX DE PARIS
    Inventors: Anne-Claire Lukaszewicz, Ingrid Ouanounou, Didier Payen De La Garanderie
  • Publication number: 20150374241
    Abstract: A non-invasive method for determining the tissue perfusion state in a patient, by measuring the variations in the skin CO2 pressure and in the perfusion index of the patient during the conducting of a localized hyperthermia test.
    Type: Application
    Filed: February 5, 2014
    Publication date: December 31, 2015
    Inventors: Fabrice VALLEE, Joaquim MATEO, Didier PAYEN DE LA GARANDERIE
  • Patent number: 8784313
    Abstract: Novel prognosis methods associated with cases of postpartum haemorrhage providing a predictive test enabling practitioners to provide better management of patients suffering from postpartum haemorrhage. Different risk factors exist on which a score allowing prediction of the need to carry out invasive procedures to stop bleeding has been developed.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: July 22, 2014
    Assignee: Assistance Publique—Hopitaux de Paris
    Inventors: Alexandre Mebazaa, Etienne Gayat, Matthieu Resche-Rigon, Olivier Morel, Yann Fargeaudou, Matthias Rossignol, Didier Payen
  • Publication number: 20130190585
    Abstract: The present invention relates to an in vitro method of prognosis for the arrest of bleeding in a patient suffering from postpartum haemorrhage in the absence of an invasive procedure, comprising the following steps: (a) determining, using a biological sample from said patient, the plasma fibrinogen concentration, the blood troponin concentration and also the prothrombin time; (b) studying at least two clinical markers for said patient, selected from the group comprising heart rate and the presence of placentation abnormalities; (c) calculating a score Z according to the following equation: Z=a+b+v+d+e; where a is associated with the existence of placentation abnormalities in said patient, with a being 0 when no placentation abnormality is observed in said patient and a being 1 when one or more placentation abnormalities are observed in said patient; where b is associated with the heart rate of said patient, with b being 0 when the heart rate of said patient is less than or equal to 115 bpm (beats per minute)
    Type: Application
    Filed: August 6, 2009
    Publication date: July 25, 2013
    Inventors: Alexandre Mebazaa, Etienne Gayat, Matthieu Resche-Rigon, Olivier Morel, Yann Fargeaudou, Matthias Rossignol, Didier Payen
  • Publication number: 20130157301
    Abstract: The present invention pertains to a method for in vitro diagnosing a bacterial infection in a biological fluid selected amongst cerebrospinal fluid, ascitic fluid, pericardial fluid, pleural fluid, urine and synovial fluid, based on the measure, in a sample of said fluid, of the production of reactive oxygen species (ROS); a high level of ROS production is indicative of the presence of activated polymorphonuclear neutrophils (PMNs) in said fluid, which in turn is a hallmark of bacterial infection.
    Type: Application
    Filed: July 26, 2011
    Publication date: June 20, 2013
    Applicant: ASSISTANCE PUBLIQUE - HOPITAUX DE PARIS
    Inventors: Anne-Claire Lukaszewicz, Ingrid Ouanounou, Didier Payen De La Garanderie
  • Patent number: 8283131
    Abstract: The present invention provides for the in vitro establishing of a prognosis for a subject in severe sepsis with at least two organ failures or in septic shock with at least two organ failures. Embodiments of the invention comprise the steps of measuring the level of the S100A8/A9 complex from a biological sample from a subject, and comparing the measured level to a predetermined threshold in which the measured level of the S100A8/A9 complex above the predetermined threshold is indicative of a bad prognosis and a measured level of the S100A8/A9 complex below the predetermined threshold is indicative of a good prognosis.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: October 9, 2012
    Assignee: Assistance Publique-Hopitaux de Paris
    Inventors: Didier Payen De La Garanderie, Anne-Claire Lukaszewicz
  • Publication number: 20120226181
    Abstract: The present invention pertains to a non-invasive way of assessing tissue perfusion in a patient, especially for treatment follow-up and prognosis of septic shock. More specifically, tissue perfusion is assessed by measuring the cutaneous partial pressure of carbon dioxide of said patient, for example at ear lobe with a PCO2 sensor which is not heated at a temperature superior to 37.5° C., and by calculating the difference between said cutaneous PCO2 and either the arterial or the end-tidal partial pressure of CO2. A device for performing a continuous non-invasive perfusion follow-up is also part of the invention.
    Type: Application
    Filed: August 27, 2010
    Publication date: September 6, 2012
    Applicant: ASSISTANCE PUBLIQUE - HOPITAUX DE PARIS
    Inventors: Fabrice Vallee, Joaquim Mateo, Didier Payen De La Garanderie
  • Publication number: 20110287433
    Abstract: The present invention provides methods and kits to obtain an early evaluation of mortality risk and help therapeutic decisions for patients in severe sepsis with two organ failures, for example for patients in septic shock. The invention is based on the measure of the level of S100A8/A9 complex in plasma, since a level of S100A8/A9 above a predetermined threshold is indicative of a bad prognosis and a level of S100A8/A9 below said predetermined threshold is indicative of a good prognosis.
    Type: Application
    Filed: October 27, 2009
    Publication date: November 24, 2011
    Inventors: Didier Payen de La Garanderie, Anne-Claire Lukaszewicz
  • Publication number: 20110190143
    Abstract: The present invention relates to the field of treatment of serious medical syndromes such as severe sepsis and septic shock. In particular, the present invention provides methods and kits to obtain an early evaluation of mortality risk and help therapeutic decisions for patients in severe sepsis with two organ failures, for example for patients in septic shock with one additional organ failure. The methods of the invention are based on the analysis of an expression profile of one or several genes selected in the group consisting of HLA-DRB4, FOSB, GPR109B, RBP7, TLR7, IL15, HLA-C, AMFR, LOC96610, IRF5, MGC29506, EDG3, IGLV1-44, IFIT2, IFI44, EPSTI1, TNFRSF17, AREG, THBS1, CTLS1, TFPI, PHACTR2, PFKFB2 and CHIT1.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 4, 2011
    Inventors: Didier Payen de la Garanderie, Anne-Claire Lukaszewicz
  • Publication number: 20100105084
    Abstract: The present invention provides for the in vitro establishing of a prognosis for a subject in severe sepsis with at least two organ failures or in septic shock with at least two organ failures. Embodiments of the invention comprise the steps of measuring the level of the S100A8/A9 complex from a biological sample from a subject, and comparing the measured level to a predetermined threshold in which the measured level of the S100A8/A9 complex above the predetermined threshold is indicative of a bad prognosis and a measured level of the S100A8/A9 complex below the predetermined threshold is indicative of a good prognosis.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 29, 2010
    Inventors: Didier Payen De La Garanderie, Anne-Claire Lukaszewicz