Patents by Inventor Graciella Djavid

Graciella Djavid 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).

  • Carboxylate-sulfonate polymers
    Patent number: 6417000
    Abstract: The invention relates to water-insoluble polymers which promote cell proliferation, contain carboxylate and sulfonate groups and are obtainable by free radical copolymerization of one or more aliphatically unsaturated monomers containing carboxylate groups, or the correspondingly functionalized derivatives of the monomers, as component I with one or more aliphatically unsaturated monomers containing sulfonate groups, or the correspondingly functionalized derivatives of the monomers, as component II and a component III which comprises an aliphatically unsaturated monomer or several aliphatically unsaturated monomers, the correspondingly functionalized derivatives being converted into carboxylate and sulfonate groups after the copolymerization, and to a process for their preparation, wherein the polymers are useful for forming articles which promote cell proliferation.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: July 9, 2002
    Assignee: Le Groupement d'Intérét Public Thérapeutiques Substitutives Institut Galilée, Université Paris-Nord
    Inventors: Frank Hill, by Friedrich Frank Hill, by Regina Luise Hill, Peter Ottersbach, Graciella Djavid, Marcel Jozefowicz, Veronique Migonney, Jean-Pierre Vairon
  • Preparation of carboxylate-sulfonate polymers having cell proliferation-promoting properties
    Publication number: 20020068804
    Abstract: The invention relates to water-insoluble polymers which promote cell proliferation, contain carboxylate and sulfonate groups and are obtainable by free radical copolymerization of one or more aliphatically unsaturated monomers containing carboxylate groups, or the correspondingly functionalized derivatives of the monomers, as component I with one or more aliphatically unsaturated monomers containing sulfonate groups, or the correspondingly functionalized derivatives of the monomers, as component II and a component III which comprises an aliphatically unsaturated monomer or several aliphatically unsaturated monomers, the correspondingly functionalized derivatives being converted into carboxylate and sulfonate groups after the copolymerization, and to a process for their preparation, wherein the polymers are useful for forming articles which promote cell proliferation.
    Type: Application
    Filed: November 15, 2001
    Publication date: June 6, 2002
    Applicant: Le Groupement d'Interet Public Therapeutiques Substitutives Instinut Galilee
    Inventors: Frank Hill, Hella Luise Hill, Henning Hinrich Hill, Friedrich Frank Hill, Regina Luise Hill, Peter Ottersbach, Graciella DJavid, Marcel Jozefowicz, Veronique Migonney, Jean-Pierre Vairon
  • Preparation of carboxylate-sulfonate polymers having cell proliferation-promoting properties
    Patent number: 6365692
    Abstract: The invention relates to water-insoluble polymers which promote cell proliferation, contain carboxylate and sulfonate groups and are obtainable by free radical copolymerization of one or more aliphatically unsaturated monomers containing carboxylate groups, or the correspondingly functionalized derivatives of the monomers, as component I with one or more aliphatically unsaturated monomers containing sulfonate groups, or the correspondingly functionalized derivatives of the monomers, as component II and a component III which comprises an aliphatically unsaturated monomer or several aliphatically unsaturated monomers, the correspondingly functionalized derivatives being converted into carboxylate and sulfonate groups after the copolymerization, and to a process for their preparation, wherein the polymers are useful for forming articles which promote cell proliferation.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: April 2, 2002
    Assignee: Le Groupement d'Intérêt Public Thérapeutiques Subsitutives Institut Galilée, Université Paris-Nord
    Inventors: Frank Hill, Peter Ottersbach, Graciella Djavid, Marcel Jozefowicz, Veronique Migonney, Jean-Pierre Vairon
  • Water insoluble bacteriophobic polymers containing carboxyl and sulfonic acid groups
    Patent number: 6218492
    Abstract: The invention relates to water-insoluble, bacteriophobic and optionally cell proliferation-inhibiting polymers obtainable by free-radical polymerization of (a) at least one monomer of the general formula R—(A)a, in which R is an aliphatically unsaturated organic radical with the valence a, A is a carboxyl group —COOH, sulfuric acid group —OSO2OH, sulfonic acid group —SO3H, phosphoric acid group —OPO(OH)2, phosphonic acid group —PO(OH)2, phosphorous acid group —OP(OH)2, a phenolic hydroxyl group or a salt of one of the groups, and a is 1, 2 or 3, with the proviso that, if the monomer of the formula I contains a carboxyl group —COOH or a carboxylate group, either this monomer contains at least one further radical A having a different one of the definitions specified for A, or at least one further monomer of the formula I is also used in which A has a different one of the definitions specified for A; and (b) at least one other aliphatically unsaturated monomer, whe
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: April 17, 2001
    Assignee: Huels Aktiengesellschaft
    Inventors: Frank Hill, Peter Ottersbach, Graciella Djavid, Marcel Jozefowicz, Veronique Migonney, Jean-Pierre Vairon