Patents by Inventor Sonia LETESTU

Sonia LETESTU 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).

  • Methods of inactivating viral contaminants
    Patent number: 11884700
    Abstract: The present invention relates to a method for preparing an antibody-containing solution free of viral contaminants starting from cultured cells are described. The method include a step of subjecting the antibody containing solution to a mix of solvent and detergent or to high pH.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: January 30, 2024
    Assignee: ICHNOS SCIENCES SA
    Inventors: Filipa Abrantes, Sonia Letestu, Laure Cahuzac, Lionel Duarte
  • METHODS OF INACTIVATING VIRAL CONTAMINANTS
    Publication number: 20240002434
    Abstract: The present invention relates to a method for preparing an antibody-containing solution free of viral contaminants starting from cultured cells are described. The method include a step of subjecting the antibody containing solution to a mix of solvent and detergent or to high pH.
    Type: Application
    Filed: April 5, 2023
    Publication date: January 4, 2024
    Inventors: Filipa ABRANTES, Sonia LETESTU, Laure CAHUZAC, Lionel DUARTE
  • METHOD FOR THE PRODUCTION AND PURIFICATION OF MULTIVALENT IMMUNOGLOBULIN SINGLE VARIABLE DOMAINS
    Publication number: 20230136595
    Abstract: The present disclosure relates to an improved method for the manufacture of polypeptides comprising at least three or at least four immunoglobulin single variable domains (ISVDs). More specifically, an improved method is provided of producing, purifying and isolating polypeptides comprising at least three or at least four ISVDs in which an undesired product-related conformational variant is reduced or absent.
    Type: Application
    Filed: March 30, 2021
    Publication date: May 4, 2023
    Applicant: Ablynx NV
    Inventors: Florian Madura, Sonia Letestu, Ann Brigé, Tom Merchiers, Ellen Van Horen, Chakib Borsali
  • METHODS OF INACTIVATING VIRAL CONTAMINANTS
    Publication number: 20210324000
    Abstract: The present invention relates to a method for preparing an antibody-containing solution free of viral contaminants starting from cultured cells are described. The method include a step of subjecting the antibody containing solution to a mix of solvent and detergent or to high pH.
    Type: Application
    Filed: November 20, 2020
    Publication date: October 21, 2021
    Inventors: Filipa ABRANTES, Sonia LETESTU, Laure CAHUZAC, Lionel DUARTE
  • METHODS OF INACTIVATING VIRAL CONTAMINANTS
    Publication number: 20200369747
    Abstract: The present invention relates to a method for preparing an antibody-containing solution free viral contaminants starting from cultured cells are described. The method include a step of subjecting the antibody containing solution to a mix of solvent and detergent or to high pH.
    Type: Application
    Filed: August 27, 2018
    Publication date: November 26, 2020
    Applicant: Ichnos Sciences SA.
    Inventors: Filipa ABRANTES, Sonia LETESTU, Laure CAHUZAC, Lionel DUARTE
  • METHODS OF INACTIVATING VIRAL CONTAMINANTS
    Publication number: 20190292221
    Abstract: The present invention relates to a method for preparing an antibody-containing solution free of viral contaminants starting from cultured cells are described. The method include a step of subjecting the antibody containing solution to a mix of solvent and detergent or to high pH.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 26, 2019
    Applicant: Glenmark Pharmaceuticals S.A.
    Inventors: Filipa ABRANTES, Sonia LETESTU, Laure CAHUZAC, Lionel DUARTE