Patents by Inventor Christophe Rougeot

Christophe Rougeot 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).

  • Reservoir system for prolonged diffusion of an active principle
    Patent number: 5830546
    Abstract: A reservoir system consisting of a nonwoven made from thermoplastic polymer filaments, shaped into a closed bag containing a water-soluble active principle. The bag is intended to ensure a prolonged release, progressing linearly, of the active principle in an aqueous environment. For a given active principle, the desired diffusion kinetics are obtained by adjusting, depending on the availability of the active principle, the surface area of the nonwoven and the degree of hydrophily of the latter. To this end, it is impregnated, either with polysiloxane or a quaternary ammonium salt, or with a perfluorinated compound or an acrylic resin and paraffin.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: November 3, 1998
    Assignee: Holvis Holzstoff S.A.
    Inventors: Philippe Ehret, Christophe Rougeot, Herve Brochard, Andre Stamm