Patents by Inventor Abdessatar Chtourou

Abdessatar Chtourou 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).

  • Publication number: 20210024616
    Abstract: The present application relates to a method for preparing an antibody or antibody fragment composition from raw milk from a non-human mammal expressing said antibody or antibody fragment in its milk, comprising steps a) precipitation of the raw milk with caprylic acid, b) separation, consisting of centrifugation or filtration through a depth filter, and optionally c) filtration through an active carbon depth filter.
    Type: Application
    Filed: December 28, 2018
    Publication date: January 28, 2021
    Applicant: Laboratoire Francais du Fractionnement et des Biotechnolofies
    Inventors: Philippe PAOLANTONACCI, Beatrice CLAUDEL, Abdessatar CHTOUROU
  • Publication number: 20200331994
    Abstract: The present invention relates to a pharmaceutical composition for oral delivery, including an anti tumour necrosis factor alpha (TNF.alpha.) antibody, preferably a monoclonal antibody produced in the milk of a transgenic non-human animal, and which can be combined advantageously with caprylic acid, and is preferably in a form that is suitable for targeted release of the antibody in the intestine.
    Type: Application
    Filed: November 27, 2019
    Publication date: October 22, 2020
    Applicant: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventor: Abdessatar Chtourou
  • Patent number: 10611826
    Abstract: The invention relates to an affinity chromatography matrix, as a gel, comprising polymeric particles on which at least one oligosaccharide corresponding to a blood group A epitope and/or blood group B is grafted, via a spacer, characterized in that the density of oligosaccharides is comprised between 0.2 and 0.7 mg/ml of matrix. The invention also relates to the uses of this matrix for preparing concentrates of immunoglobulins for therapeutic use.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: April 7, 2020
    Assignee: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventors: Philippe Paolantonacci, Abdessatar Chtourou
  • Patent number: 10357512
    Abstract: The present invention relates to an universal plasma, originating from a mixture of plasmas originating from donor individuals of blood groups A, B, AB and/or O and compatible with all the blood groups and the preparation process thereof.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 23, 2019
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventor: Abdessatar Chtourou
  • Publication number: 20190002537
    Abstract: Disclosed is a method for preparing an immunoglobulin (Ig) concentrate useful for treating RSV infection, including a step consisting in subjecting an Ig composition derived from blood plasma to affinity chromatography utilizing an RSV-specific ligand. In a particular embodiment, the RSV-specific ligand is an RSV F protein, preferentially in prefusion conformation, or a variant or an antigenic fragment thereof.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 3, 2019
    Inventors: Gèrald PERRET, Abdessatar CHTOUROU
  • Publication number: 20180355034
    Abstract: The present invention relates to the use of antibody Fc fragments in the treatment of autoimmune and/or inflammatory diseases, said Fc fragments being isolated recombinant Fc fragments having a modified affinity for at least one of the Fc receptors (FcR), particularly an increased affinity to FcRn.
    Type: Application
    Filed: July 6, 2016
    Publication date: December 13, 2018
    Applicant: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventors: Philippe Mondon, Céline Monnet-Mars, Alexandre Fontayne, Christophe De Romeuf, Abdessatar Chtourou
  • Publication number: 20180169297
    Abstract: The present invention concerns an injectable composition comprising FVII and a filler, and its use for preventing or treating body and skin defects, especially folds, wrinkles, skin depressions and scars, while diminishing, decreasing or avoiding skin reactions due to injection, specially redness, ecchymosis, bruising, bleeding, erythema, oedema, necrosis, ulceration, swelling and/or inflammation.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 21, 2018
    Applicant: Laboratoire Français du Fractionnement et des Biotechnologies
    Inventors: Abdessatar Chtourou, Jean-Luc Plantier, Philippe Mondon
  • Publication number: 20170281679
    Abstract: The present invention relates to an universal plasma, originating from a mixture of plasmas originating from donor individuals of blood groups A, B, AB and/or O and compatible with all the blood groups and the preparation process thereof.
    Type: Application
    Filed: October 9, 2015
    Publication date: October 5, 2017
    Applicant: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventor: Abdessatar Chtourou
  • Patent number: 9718856
    Abstract: The present invention relates to a method for preparing a concentrate of polyvalent immunoglobulins with view to therapeutic use, from an initial solution of blood plasma or a plasma fraction enriched with immunoglobulins, comprising the steps for removing the protein contaminants by precipitation with caprylic acid in order to obtain a solution free of proteases, and for separating by chromatography on a fluidized bed the solution free of proteases, said method allowing a concentrate of human polyvalent immunoglobulins with a yield of more than 4.5 g of immunoglobulins per liter of blood plasma applied to be obtained.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: August 1, 2017
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Abdessatar Chtourou, Damien Bataille, Georges Michaux
  • Publication number: 20170079928
    Abstract: Disclosed is a copolymer of following formula (I): in which:—x is an integer between 10 and 250, preferably between 40 and 120, —y is an integer between 4 and 100, preferably between 10 and 100, preferably between 19 and 60, —z is an integer between 0 and (100?y), preferably equal to 0, —R represents an alkyl radical having 1 to 10 carbon atoms, a phospholipid, a glycosaminoglycan or an affinity ligand, and —R? represents a hydrogen, the —CH2—C?CH group, a —CH2-1H-1,2,3-triazole group, a —CH2—CH2—CH2—S—R? group, in which R? represents an alkyl radical having 1 to 10 carbon atoms, a phospholipid, a glycosaminoglycan, an affinity ligand or an imaging probe, and the uses of same.
    Type: Application
    Filed: May 28, 2015
    Publication date: March 23, 2017
    Inventors: Patrick COUVREUR, Julien NICOLAS, Thomas BLIN, Abdessatar CHTOUROU, Nicolas GENEVAZ
  • Publication number: 20170073396
    Abstract: The invention relates to a method for preparing plasma protein concentrate from blood plasma by means of multicolumn chromatography.
    Type: Application
    Filed: March 10, 2015
    Publication date: March 16, 2017
    Inventors: Damien BATAILLE, Abdessatar CHTOUROU, Patrick SANTAMBIEN
  • Publication number: 20160168229
    Abstract: The invention relates to an affinity chromatography matrix, as a gel, comprising polymeric particles on which at least one oligosaccharide corresponding to a blood group A epitope and/or blood group B is grafted, via a spacer, characterized in that the density of oligosaccharides is comprised between 0.2 and 0.7 mg/ml of matrix. The invention also relates to the uses of this matrix for preparing concentrates of immunoglobulins for therapeutic use.
    Type: Application
    Filed: July 4, 2014
    Publication date: June 16, 2016
    Inventors: Philippe Paolantonacci, Abdessatar Chtourou
  • Publication number: 20160009761
    Abstract: The invention relates to a method for purifying or detecting a target protein present in a solution, wherein said method comprises, before carrying out the purification or detection step itself, the step of contacting said solution with an aptamer binding specifically to said target protein, wherein said aptamer does not bind to any protein homologous to said target protein that could also be present in the solution.
    Type: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Applicant: Laboratoire Francais du Fractionnement et des Biotechnologies
    Inventors: Laurent Siret, Abdessatar Chtourou, Frederic Dhainaut, Gerald Perret
  • Publication number: 20150328362
    Abstract: The invention relates to a thrombin-free, fibrinogen-based biological adhesive for therapeutic use, which comprises factor VIIa and a source of calcium ions. The invention also relates to the use of the biological adhesive as a medicament, in particular as a dressing for biological tissues, wounds or biomaterials.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Inventor: Abdessatar Chtourou
  • Publication number: 20150328291
    Abstract: The invention relates to a thrombin-free, fibrinogen-based biological adhesive for therapeutic use, which comprises factor VIIa and a source of calcium ions. The invention also relates to the use of the biological adhesive as a medicament, in particular as a dressing for biological tissues, wounds or biomaterials.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Inventor: Abdessatar Chtourou
  • Patent number: 9175034
    Abstract: A method for purifying or detecting a target protein present in a solution, includes, before carrying out the actual detection or purification step, a step of contacting the solution with an aptamer binding specifically to the target protein, where the aptamer does not bind to a protein homologous to the target protein that could also be present in the solution.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: November 3, 2015
    Assignee: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Laurent Siret, Abdessatar Chtourou, Frédéric Dhainaut, Gérald Perret
  • Publication number: 20140141021
    Abstract: The present invention relates to a method for preparing a concentrate of polyvalent immunoglobulins with view to therapeutic use, from an initial solution of blood plasma or a plasma fraction enriched with immunoglobulins, comprising the steps for removing the protein contaminants by precipitation with caprylic acid in order to obtain a solution free of proteases, and for separating by chromatography on a fluidized bed the solution free of proteases, said method allowing a concentrate of human polyvalent immunoglobulins with a yield of more than 4.5 g of immunoglobulins per liter of blood plasma applied to be obtained.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 22, 2014
    Applicant: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES
    Inventors: Abdessatar Chtourou, Damien Bataille, Georges Michaux
  • Patent number: 8383104
    Abstract: The invention relates to a thrombin-free, fibrinogen-based biological adhesive for therapeutic use, which comprises factor VIIa and a source of calcium ions. The invention also relates to the use of the biological adhesive as a medicament, in particular as a dressing for biological tissues, wounds or biomaterials.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: February 26, 2013
    Assignee: Laboratoire Francais du Fractionnement et des Biotechnologies S.A.
    Inventor: Abdessatar Chtourou
  • Patent number: 8153382
    Abstract: The present invention relates to an immunoglobulin G concentrate for therapeutic use, in which the respective contents of anti-A and anti-B antibodies are in accordance with a negative result in the in vitro indirect Coombs test. This IgG concentrate also has a polyreactive IgG content of between 0.01% and 0.1%, in particular between 0.07% and 0.1%, relative to the total content of IgG.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: April 10, 2012
    Assignee: Laboratoire Francais du Fractionnement et des Biotechnologies Societe Anonyme
    Inventors: Abdessatar Chtourou, Frederic Dhainaut, Philippe Paolantonacci
  • Publication number: 20110097715
    Abstract: A method for purifying or detecting a target protein present in a solution, includes, before carrying out the actual detection or purification step, a step of contacting the solution with an aptamer binding specifically to the target protein, where the aptamer does not bind to a protein homologous to the target protein that could also be present in the solution.
    Type: Application
    Filed: August 13, 2008
    Publication date: April 28, 2011
    Applicant: LFB - BIOTECHNOLOGIES
    Inventors: Laurent Siret, Abdessatar Chtourou, Frédéric Dhanaut, Gérald Perret