Patents by Inventor Jean-Pierre Desvergne

Jean-Pierre Desvergne 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).

  • Photosensitive adhesive composition
    Patent number: 7544721
    Abstract: A photosensitive adhesive composition of the polymerizable resin type, the hardening of which occurs by polymerization and/or reticulation, includes:—initiators for at least one chain polymerization reaction to guarantee the hardening of the composition and a sufficient quantity of at least one bifunctional monomer, including a photolabile center with at least one photolabile entity and at least two polymerizable units, connected by covalent skeletons to the photolabile center and located away from the cleavage sites of the photolabile center, such that the composition loses the integrity and adhesivity thereof under the influence of a reticulating radiation causing the cleavage of the photolabile sites. The composition is particularly of application in dentistry.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: June 9, 2009
    Assignee: Produits Dentaires Pierre Rolland
    Inventors: Vincent Gaud, Yves Gnanou, Jean-Pierre Desvergne, Francis Dieras, Alexandrine Roubiere
  • Photosensitive adhesive composition
    Publication number: 20050182148
    Abstract: The invention relates to a photosensitive adhesive composition of the polymerisable resin type, the hardening of which occurs by means of polymerisation and/or reticulation, characterised in comprising:—initiating means for at least one chain polymerisation reaction to guarantee the hardening of said composition and a sufficient quantity of at least one bifunctional monomer, comprising a photolabile centre with at least one photolabile entity and at least two polymerisable units, connected by covalent skeletons to said photolabile centre and located away from the cleavage sites of said photolabile centre, such that said composition loses the integrity and adhesivity thereof under the influence of a reticulating radiation causing the cleavage of the photolabile sites. The composition is particularly of application in dentistry.
    Type: Application
    Filed: April 2, 2003
    Publication date: August 18, 2005
    Inventors: Vincent Gaud, Yves Gnanou, Jean-Pierre Desvergne, Francis Dieras, Alexandrine Roubiere
  • Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations
    Patent number: 5200041
    Abstract: The invention relates to a composite element incorporating a support of an organic, electricity conducting, polyaromatic structure product, such as graphite, covered with a polymer or copolymer of dibenzoethers of formula: ##STR1## in which m=0 or 1 to 10, n=0 or 1 to 10, m+n.ltoreq.10, p=0 or 1 to 6, R.sup.1 =alkyl or aryl, R.sup.2 =alkyl or aryl.These elements are usable for absorbing metal cations present in an aqueous or organic solution.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: April 6, 1993
    Assignees: Centre National de la Recherche Scientifique, Commissariat A L'Energie Atomique
    Inventors: Jacques Simonet, Angely Lysiane, Noelle Simonet, Viviane Questaigne, Veronique Le Berre, Henri Bouas-Laurent, Jean-Pierre Desvergne