Patents by Inventor Patrick Couvreur

Patrick Couvreur 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: 20150315220
    Abstract: The present invention relates to novel derivatives of oxazaphosphorines that are pre-activated, to the methods for preparing same, to the pharmaceutical compositions containing same and to the therapeutic use thereof, in particular for treating cancer.
    Type: Application
    Filed: July 2, 2015
    Publication date: November 5, 2015
    Inventors: ANGELO PACI, THIERRY MARTENS, MICHAEL RIVARD, PATRICK COUVREUR, DIDIER DESMAELE, JOACHIM CARON
  • Patent number: 9073957
    Abstract: The present invention relates to novel derivatives of oxazaphosphorines that are pre-activated, to the methods for preparing same, to the pharmaceutical compositions containing same and to the therapeutic use thereof, in particular for treating cancer.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: July 7, 2015
    Assignee: INSTITUT GUSTAVE ROUSSY
    Inventors: Angelo Paci, Thierry Martens, Michael Rivard, Patrick Couvreur, Didier Desmael, Joachim Caron
  • Patent number: 8962552
    Abstract: The invention relates to a water-dispersible derivative of a therapeutic agent having a low water solubility that comprises at least one molecule of said agent covalently bonded to at least one molecule of a hydrocarbon derivative having a squalenic structure or the like. The invention further relates to corresponding nanoparticles.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: February 24, 2015
    Assignees: Centre Nationale de Recherche Scientifique, Universite Paris SU XI
    Inventors: Patrick Couvreur, Harivardhan Reddy Lakkireddy, Franco Dosio, Barbara Stella, Luigi Cattel
  • Publication number: 20150045426
    Abstract: A complex formed of at least one molecule of 5-(1,2-dihydroxy-ethyl)-3,4-dihydroxy-5H-furan-2-one or a derivative covalently bonded with at least one hydrocarbon radical with formula (A) as follows: wherein: •-m 1=1, 2, 3, 4, 5 or 6; •-m 2=0, 1, 2, 3, 4, 5 or 6; and represents the site of the bond with the molecule of 5-(1,2-dihydroxy-ethyl)-3,4-dihydroxy-5H-furan-2-one or derivative.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 12, 2015
    Inventors: Patrick Couvreur, Fatima Zouhiri, Ruxandra Gref, Didier Desmaele
  • Publication number: 20150037419
    Abstract: Functional PLA-PEG copolymers, the nanoparticles thereof, their preparation and use for targeted drug delivery and imaging The present invention concerns novel functional PEG-PLA containing copolymers, the nanoparticles containing the same, their process of preparation and their use for site specific targeted drug delivery and imaging.
    Type: Application
    Filed: February 28, 2013
    Publication date: February 5, 2015
    Inventors: Didier Bazile, Patrick Couvreur, Harlvardhan Reddy Lakkireddy, Nicolas Mackiewicz, Julien Nicolas
  • Patent number: 8748414
    Abstract: The present invention relates to a complex made up of at least one molecule of statin or a derivative thereof, covalently bonded to at least one hydrocarbon radical including at least 18 carbon atoms and containing at least one 2-methyl-buta-2-ene unit, to nanoparticles of such a complex, and to a method for preparing same, said complex and/or said nanoparticles optionally being in the form of a lyophilizate. The present invention also relates to a pharmaceutical composition including at least one complex and/or nanoparticles such as previously defined. The invention finally relates to said complex and/or to said nanoparticles for the treatment and/or prevention of hyperlipemia and hypercholesterolemia.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: June 10, 2014
    Inventors: Patrick Couvreur, Didier Desmaele, Fat'ma Zouhiri, Reddy Harivardhan Lakkireddy
  • Patent number: 8741347
    Abstract: The present invention relates to a method for preparing a cyclodextrin polymer and/or a hydrophilic polymer emulsion having cyclodextrins as well as lipophilic compounds, the emulsions having a remarkable stability. In particular, the method includes: (i) adding a lipophilic compound into an aqueous solution of a cyclodextrin unit polymer or hydrophilic polymer having cyclodextrins; (ii) forming an emulsion from the mixture resulting from step (i). The invention also relates to the resulting emulsions, i.e. stabilized emulsions by a non-covalent and non-crystalline inclusion complex consisting of (i) a cyclodextrin unit polymer or a hydrophilic polymer having cyclodextrins and (ii) a lipophilic compound. The invention also relates to the use of said emulsions in the cosmetic, pharmaceutical and/or agri-food fields.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: June 3, 2014
    Assignees: Centre National de la Recherche Scientifique—CNRS, Universite Paris—SUD 11
    Inventors: Anca-Lucia Laza-Knoerr, Ruxandra Gref, Catherine Amiel, Patrick Couvreur
  • Publication number: 20130261088
    Abstract: The present invention relates to novel derivatives of oxazaphosphorines that are pre-activated, to the methods for preparing same, to the pharmaceutical compositions containing same and to the therapeutic use thereof, in particular for treating cancer.
    Type: Application
    Filed: December 9, 2011
    Publication date: October 3, 2013
    Applicant: INSTITUT GUSTAVE ROUSSY
    Inventors: Angelo Paci, Thierry Martens, Michael Rivard, Patrick Couvreur, Didier Desmael, Joachim Caron
  • Publication number: 20120107252
    Abstract: The present invention relates to a method for preparing a cyclodextrin polymer and/or a hydrophilic polymer emulsion having cyclodextrins as well as lipophilic compounds, the emulsions having a remarkable stability. In particular, the method includes: (i) adding a lipophilic compound into an aqueous solution of a cyclodextrin unit polymer or hydrophilic polymer having cyclodextrins; (ii) forming an emulsion from the mixture resulting from step (i). The invention also relates to the resulting emulsions, i.e. stabilized emulsions by a non-covalent and non-crystalline inclusion complex consisting of (i) a cyclodextrin unit polymer or a hydrophilic polymer having cyclodextrins and (ii) a lipophilic compound. The invention also relates to the use of said emulsions in the cosmetic, pharmaceutical and/or agri-food fields.
    Type: Application
    Filed: April 23, 2010
    Publication date: May 3, 2012
    Applicants: UNIVERSITE PARIS-SUD 11, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE- CNRS
    Inventors: Anca-Lucia Laza-Knoerr, Ruxandra Gref, Catherine Amiel, Patrick Couvreur
  • Publication number: 20110269830
    Abstract: The present invention relates to a complex made up of at least one molecule of statin or a derivative thereof, covalently bonded to at least one hydrocarbon radical including at least 18 carbon atoms and containing at least one 2-methyl-buta-2-ene unit, to nanoparticles of such a complex, and to a method for preparing same, said complex and/or said nanoparticles optionally being in the form of a lyophilisate. The present invention also relates to a pharmaceutical composition including at least one complex and/or nanoparticles such as previously defined. The invention finally relates to said complex and/or to said nanoparticles for the treatment and/or prevention of hyperlipemia and hypercholesterolemia.
    Type: Application
    Filed: October 28, 2009
    Publication date: November 3, 2011
    Inventors: Patrick Couvreur, Didier Desmaele, Fat'ma Zouhiri, Reddy Harivardhan Lakkireddy
  • Publication number: 20110269731
    Abstract: The present invention relates to a complex made up of at least one beta-lactam molecule covalently bonded to at least one hydrocarbon radical including at least 18 carbon atoms and containing at least one unit of 2-methyl-buta-2-ene, to nanoparticles of said complexes, and to a method for preparing same, said complex and/or said nanoparticles optionally being in the form of a lyophilisate. The present invention also relates to a pharmaceutical composition including at least said complex and/or said nanoparticles. The invention finally relates to said complex and/or to said nanoparticles for the treatment and/or prevention of bacterial infections, in particular caused by strains that are sensitive to beta-lactams.
    Type: Application
    Filed: October 28, 2009
    Publication date: November 3, 2011
    Inventors: Patrick Couvreur, Didier Demaele, Fatima Zouhiri
  • Patent number: 8044034
    Abstract: The use of squalenic acid or a derivative thereof in formulating at least one polar active principle with a molecular weight of 100 Da or more, in the form of nanoparticles, and pharmaceutical compositions thereof.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: October 25, 2011
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Universite Paris-Sud
    Inventors: Patrick Couvreur, Barbara Stella, Luigi Cattel, Flavio Rocco, Jack-Michel Renoir, Veronique Rosilio
  • Publication number: 20110184053
    Abstract: The invention relates to a complex formed by at least one molecule of nucleic acid comprising between 10 and 40 nucleotides, covalently coupled to at least one hydrocarbon compound that is at least C18 is hydrocarbon compound, having a squalene structure or a structure similar thereto.
    Type: Application
    Filed: May 14, 2009
    Publication date: July 28, 2011
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE PARIS SUD
    Inventors: Patrick Couvreur, Didier Desmaele, Mouna Raouane, Liliane Massade, Claude Malvy
  • Publication number: 20100305030
    Abstract: The invention relates to a water-dispersible derivative of a therapeutic agent having a low water solubility that comprises at least one molecule of said agent covalently bonded to at least one molecule of a hydrocarbon derivative having a squalenic structure or the like. The invention further relates to corresponding nanoparticles.
    Type: Application
    Filed: November 27, 2008
    Publication date: December 2, 2010
    Applicants: Centre National De La Recherche Scientifique, Universite Paris Sud XI
    Inventors: Patrick Couvreur, Harivardhan Reddy Lakkireddy, Franco Dosio, Barbara Stella, Luigi Cattel
  • Patent number: 7833765
    Abstract: The invention concerns multiparticulate galenic formulations for oral administration and designed for colon targeted delivery of active principles selected from the group comprising enzymes capable of inactivating macrolides and the like, enzymes capable of inactivating quinolones and ?-lactamases.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: November 16, 2010
    Assignees: Da Volterra, Centre Nationale de la Recherche Scientifique
    Inventors: Sandrine Bourgeois, Elias Fattal, Antoine Andremont, Patrick Couvreur
  • Publication number: 20100226991
    Abstract: The invention relates to solid organometallic hybrids with modified surface. Said solid may be used for example for the encapsulation and vectoring of molecules of interest such as active pharmaceutical agents, compounds of interest in cosmetics and markers, for example, contrast agents. Said solids show good results in terms of loading capacity in medicament agents and in biocompatibility.
    Type: Application
    Filed: October 1, 2008
    Publication date: September 9, 2010
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS-, UNIVERSITE DE VERSAILLES - SAINT-QUENTIN-EN- YVELINES
    Inventors: Patricia Horcajada-Cortes, Gérard Ferey, Christian Serre, Ruxandra Gref, Patrick Couvreur
  • Publication number: 20100209354
    Abstract: The invention relates to nanoparticles made from organometallic hybrid materials made from iron carboxylates, used for example as contrast agents. The particles can also be used for the encapsulation and vectoring of molecules of interest such as active3 pharmaceutical agents, cosmetically interesting compounds and markers. Apart from the intrinsic properties thereof for imaging, said nanoparticles give good results in terms of capacity for loading with medicaments and in biocompatibility.
    Type: Application
    Filed: October 1, 2008
    Publication date: August 19, 2010
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS, UNIVERSITE DE VERSAILLES - SAINT-QUENTIN- EN-YVELINES
    Inventors: Patricia Horcajada-Cortes, Gérard Ferey, Christian Serre, Ruxandra Gref, Patrick Couvreur
  • Publication number: 20100160249
    Abstract: The use of squalenic acid or a derivative thereof in formulating at least one polar active principle with a molecular weight of 100 Da or more, in the form of nanoparticles, and pharmaceutical compositions thereof.
    Type: Application
    Filed: March 4, 2010
    Publication date: June 24, 2010
    Applicants: Centre National De La Recherche Scientifique, Universite Paris-Sud
    Inventors: Patrick Couvreur, Barbara Stella, Luigi Cattel, Flavio Rocco, Jack-Michel Renoir, Véronique Rosilio
  • Patent number: 7704972
    Abstract: The invention concerns a 2?,2?-difluoro-2?-deoxycytidine derivative of general formula (I), wherein: R1, R2 and R3, identical or different, represent independently of one another, a hydrogen atom or an at least C18 hydrocarbon acyl radical and of such conformation that it is capable of providing the compound of general formula (I), a compacted form in a polar solvent medium, at least one of groups R1, R2 and R3 being other than a hydrogen atom.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: April 27, 2010
    Assignees: Centre National de la Recherche Scientifique, Universite Paris-SUD
    Inventors: Patrick Couvreur, Barbara Stella, Luigi Cattel, Flavio Rocco, Jack-Michel Renoir, Véronique Rosilio
  • Patent number: 7682635
    Abstract: A composition comprises an aqueous dispersion of particles (p) of mean hydrodynamic diameter between 50 and 5000 nm. The particles contain (A) polymers based on cyclodextrin units, comprising on average at least four cyclodextrin units within their structure; and (B) macromolecules of polysaccharides comprising groups G capable of forming inclusion complexes with the cyclodextrins present in the structure of the polymers (A), with an average number of groups G per polysaccharide macromolecule at least equal to three. The compounds (A) and (B) are water-soluble in the isolated state. A method is also provided which relates to the preparation of these compositions, as well as their use in order to achieve the encapsulation of compounds such as active substances.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: March 23, 2010
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Universite de Paris 11 - Paris SUD
    Inventors: Ruxandra Gref, Catherine Amiel, Bernard Sebille, Patrick Couvreur