Patents by Inventor Gérard Helary

Gérard Helary 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).

  • Method for grafting bioactive polymers on prosthetic materials
    Patent number: 9139678
    Abstract: The invention concerns methods for grafting bioactive polymers on a prosthetic material, the materials obtainable by said method and applications thereof. More specifically, the invention concerns a method for directly grafting polymers on the surface of prosthetic materials.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: September 22, 2015
    Assignee: UNIVERSITE PARIS 13
    Inventors: Véronique Migonney, Gérard Helary, Flavie Noirclere
  • Method for Grafting Bioactive Polymers on Prosthetic Materials
    Publication number: 20090318622
    Abstract: The invention concerns methods for grafting bioactive polymers on a prosthetic material, the materials obtainable by said method and applications thereof. More specifically, the invention concerns a method for directly grafting polymers on the surface of prosthetic materials.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 24, 2009
    Inventors: Véronique Migonney, Gérard Helary, Flavie Noirclere
  • Bioactive surface coating
    Patent number: 6248811
    Abstract: A process is disclosed for preparing bioactive, covalently fixed coatings on the surfaces of substrates, by grafting to a surface of the substrate a coating polymer which contains the following monomers in copolymerized form: (i) at least one monomer of the general formula: R—(A)a  (I), in which R is a mono- or diolefinically unsaturated organic radical having a valence a, A is a carboxyl group, a sulfuric acid group, a sulfonic acid group, a phosphoric acid group, a phosphonic acid group, a phosphorous acid group, a phenolic hydroxyl group, or a salt of one of these acid groups, and a is 1, 2 or 3; and (ii) at least one monomer which is sensitive to UV radiation.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: June 19, 2001
    Assignee: Huels Aktiengesellschaft
    Inventors: Peter Ottersbach, Britta Mensing, Gerard Helary, Marcel Jozefowicz, Veronique Migonney, Jean-Pierre Vairon