Patents by Inventor Raymonde Tholin

Raymonde Tholin 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).

  • Polysaccharide crosslinking, hydrogel preparation, resulting polysaccharide(s) and hydrogel(s), uses thereof
    Patent number: 6921819
    Abstract: The invention relates to a process for the crosslinking of polysaccharides. The process of the invention is a process for the crosslinking of at least one polymer selected from polysaccharides and their derivatives, under the action of at least one polyfunctional crosslinking agent, characterized in that said polyfunctional crosslinking agent is reacted with said polymer, in the solid state, during hydration. The invention is applied to the manufacture of hydrogels and gels that can be used, in particular, in plastic or cosmetic surgery.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: July 26, 2005
    Assignee: Laboratoires d'Esthetique Appliquee
    Inventors: Estelle Piron, Raymonde Tholin
  • Diphasic injection composition containing dispersed and continuous phases useful for reparative and plastic surgery
    Patent number: 6685963
    Abstract: Biocompatible diphasic compositions are prepared comprising a dispersed phase suspended in a continuous phase, more particularly suitable for use as a filling material in reparative and plastic surgery. The dispersed phase consists of particles of at least one hydrogel of a (co)polymer obtained by polymerizing and cross-linking acrylic acid, methacrylic acid and/or at least one derivative of said acids. The continuous phase is an aqueous solution or hydrogel of a polymer selected from proteins, polysaccharides and their derivatives which have been cross-linked. The polysaccharide may be hyaluronic acid, its salts and a mixture of its salts, advantageously consisting of a sodium hyaluronate.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: February 3, 2004
    Assignees: Corneal Industrie, Dermatech
    Inventors: Valérie Taupin, Estelle Piron, Raymonde Tholin, Franck Villain
  • Polysaccharide crosslinking, hydrogel preparation, resulting polysaccharide(s) and hydrogel(s), uses thereof
    Publication number: 20030148995
    Abstract: The invention relates to a process for the crosslinking of polysaccharides. The process of the invention is a process for the crosslinking of at least one polymer selected from polysaccharides and their derivatives, under the action of at least one polyfunctional crosslinking agent, characterized in that said polyfunctional crosslinking agent is reacted with said polymer, in the solid state, during hydration. The invention is applied to the manufacture of hydrogels and gels that can be used, in particular, in plastic or cosmetic surgery.
    Type: Application
    Filed: January 13, 2003
    Publication date: August 7, 2003
    Inventors: Estelle Piron, Raymonde Tholin