Patents by Inventor Philippe Lavalle

Philippe Lavalle 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: 11827747
    Abstract: The present invention concerns a polymer comprising repetitive units having the following formula (I) wherein R1 is H or Me; L is a linker; R2 is the side chain of an ?-amino acid being other than arginine; m is 0 or an integer comprised from 1 to 10; n is an integer comprised from 1 to 10; and X— is a counterion.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: November 28, 2023
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE (INSERM), UNIVERSITÉ DE STRASBOURG
    Inventors: Fouzia Boulmedais, Delphine Chan-Seng, Nicolas Zydziak, Philippe Lavalle
  • Patent number: 11602578
    Abstract: The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 14, 2023
    Assignees: Université de Strasbourg, Institut National De La Sante Et De La Recherche Medicale (INSERM), Protip Medical
    Inventors: Philippe Lavalle, Pierre Schaaf, Nihal Engin Vrana, Angela Mutschler, Cynthia Calligaro, Lorène Tallet
  • Publication number: 20220389083
    Abstract: The present invention relates to a process of preparation of a biomaterial comprising the steps of: a) Preparing a solution comprising at least one protein having a solubility in water superior or equal to about 10 mg/mL and at least one salt having solubility in water superior or equal to about 500 mg/mL, b) Evaporating the solution obtained in step a) as is, as a foam obtained by foaming the solution obtained in step a), or as a mixture thereof, at a temperature comprised of from 4 to 50° C. in atmospheric pressure or at lower temperatures under vacuum or at a pressure lower than atmospheric pressure, until the formation of two non-miscible phases or until obtaining a substantially dry solid, thereby obtaining a biomaterial. The present invention also relates to a biomaterial obtainable by the process, and to the use of the biomaterial as a support for in vitro tissue engineering and/or for in vitro cell culture and in vitro expansion and/or as an implantable medical device, or as a drug.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 8, 2022
    Inventors: Eya ALOUI, Marcella DE GIORGI, Benoît FRISCH, Philippe LAVALLE, Pierre SCHAAF
  • Patent number: 11471558
    Abstract: The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: October 18, 2022
    Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), UNIVERSITÉ DE STRASBOURG, PROTIP MEDICAL
    Inventors: Philippe Lavalle, Pierre Schaaf, Nihal Engin Vrana, Angela Mutschler
  • Publication number: 20220213265
    Abstract: The present invention concerns a polymer comprising repetitive units having the following formula (I) wherein R1 is H or Me; L is a linker; R2 is the side chain of an ?-amino acid being other than arginine; m is 0 or an integer comprised from 1 to 10; n is an integer comprised from 1 to 10; and X— is a counterion.
    Type: Application
    Filed: May 6, 2020
    Publication date: July 7, 2022
    Inventors: Fouzia BOULMEDAIS, Delphine CHAN-SENG, Nicolas ZYDZIAK, Philippe LAVALLE
  • Publication number: 20220211914
    Abstract: The present invention concerns a hydrogel comprising hyaluronic acid (HA) or a derivative thereof, loaded with at least one positively charged antimicrobial peptide, wherein said HA or derivative thereof is cross-linked with a cross-linking agent at the level of its hydroxyl moieties while the carboxyl moieties of HA or derivative thereof remain free and said HA or derivative thereof remains negatively charged; and a method for preparing said loaded hydrogel.
    Type: Application
    Filed: April 30, 2020
    Publication date: July 7, 2022
    Inventors: Philippe Lavalle, Cynthia Calligaro, Varvara Gribova, Lorène Tallet, Nihal Engin Vrana
  • Patent number: 10864296
    Abstract: A polyelectrolyte coating comprises at least one polycationic layer consisting of at least one polyarginine as herein defined and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit. Also disclosed is a method of preventing a bacterial infection in an individual.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: December 15, 2020
    Assignees: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM), UNIVERSITÉ DE STRASBOURG, PROTIP MEDICAL
    Inventors: Philippe Lavalle, Pierre Schaaf, Nihal Engin Vrana, Angela Mutschler
  • Publication number: 20200289706
    Abstract: The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.
    Type: Application
    Filed: November 2, 2018
    Publication date: September 17, 2020
    Inventors: Philippe LAVALLE, Pierre SCHAAF, Nihal Engin VRANA, Angela MUTSCHLER, Cynthia CALLIGARO, Lorène TALLET
  • Publication number: 20190375791
    Abstract: The present invention relates to a cateslytin peptide having an amino acid sequence consisting or consisting essentially of the sequence of SEQ ID NO: 1, wherein at least 80%, preferably at least 90%, of the amino acids residues of said cateslytin are D-configured. The invention also relates to the use of said cateslytin peptide as a drug, especially in the treatment of an infection in a patient in needs thereof.
    Type: Application
    Filed: November 22, 2017
    Publication date: December 12, 2019
    Inventors: Céline MARBAN, Marie-Hélène METZ-BOUTIGUE, Philippe LAVALLE, Pierre SCHAAF, Youssef HAIKEL
  • Publication number: 20190117832
    Abstract: The present invention concerns a polyelectrolyte coating comprising at least one polycationic layer consisting of at least one polycation consisting of n repetitive units having the formula (1) and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit.
    Type: Application
    Filed: May 2, 2017
    Publication date: April 25, 2019
    Inventors: Philippe LAVALLE, Pierre SCHAAF, Nihal Engin VRANA, Angela MUTSCHLER
  • Publication number: 20180318472
    Abstract: A polyelectrolyte coating comprises at least one polycationic layer consisting of at least one polyarginine as herein defined and at least one polyanionic layer consisting of hyaluronic acid. The polyelectrolyte coating has a biocidal activity and the invention thus further refers to the use of said polyelectrolyte coating for producing a device, in particular a bacteriostatic medical device, more particularly an implantable device, comprising said polyelectrolyte coating, and a method for preparing said device and a kit. Also disclosed is a method of preventing a bacterial infection in an individual.
    Type: Application
    Filed: July 11, 2017
    Publication date: November 8, 2018
    Inventors: Philippe LAVALLE, Pierre SCHAAF, Nihal Engin VRANA, Angela MUTSCHLER
  • Publication number: 20080171070
    Abstract: The invention relates to polyelectrolyte multilayer films presenting a tunable biological activity and methods for preparing the same. The invention further relates to surfaces presenting such films and uses thereof, such as for the controlled delivery of biologically active agents.
    Type: Application
    Filed: January 31, 2006
    Publication date: July 17, 2008
    Inventors: Pierre Schaaf, Nadia Jessel, Joelle Ogier-Dirrig, Philippe Lavalle, Jean-Claude Voegel, Bernard Senger