Patents by Inventor Severine Despond

Severine Despond 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).

  • Support covered with a chitosan-based coating and method for the production thereof
    Patent number: 7241498
    Abstract: Support based on organic and/or inorganic fibres covered at least on one of the faces thereof with a chitosan-based layer, characterized in that the layer is obtained by depositing a chitosan-based aqueous solution, the average molar mass of which has a mass less then 130 000 g/mol, the concentration of which is between 6 and 30% by weight and the viscosity of which is between 100 and 3000 cps.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: July 10, 2007
    Assignee: Ahlstrom Corporation
    Inventors: Alain Domard, Eliane Espuche, Séverine Despond, Noël Cartier
  • Use of material based on organic and/or inorganic fibres and chitosan for fixing metal ions
    Patent number: 7189326
    Abstract: The invention concerns the use of a material based on organic and/or inorganic fibres and chitosan for fixing metal ions contained in an effluent. The invention is characterised in that chitosan represents between 0.01 and 20% by dry weight of fibres and its degree of deacetylation is higher than 90%.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: March 13, 2007
    Assignee: Ahlstrom Corporation
    Inventors: Alain Domard, Eliane Espuche, Severine Despond, Noel Cartier
  • Support covered with a chitosan-based coating and method for the production thereof
    Publication number: 20050084677
    Abstract: Support based on organic and/or inorganic fibres covered at least on one of the faces thereof with a chitosan-based layer, characterised in that the layer is obtained by depositing a chitosan-based aqueous solution, the average molar mass of which has a mass less then 130 000 g/mol, the concentration of which is between 6 and 30% by weight and the viscosity of which is between 100 and 3000 cps.
    Type: Application
    Filed: March 12, 2003
    Publication date: April 21, 2005
    Inventors: Alain Domard, Eliane Espuche, Severine Despond, Noel Cartier
  • Use of a material based on organic and/or inorganic fibres and chitosan for fixing metal ions
    Publication number: 20040238449
    Abstract: The invention concerns the use of a material based on organic and/or inorganic fibres and chitosan for fixing metal ions contained in an effluent. The invention is characterised in that chitosan represents between 0.01 and 20% by dry weight of fibres and its degree of deacetylation is higher than 90%.
    Type: Application
    Filed: July 13, 2004
    Publication date: December 2, 2004
    Inventors: Alain Domard, Eliane Espuche, Severine Despond, Noel Cartier