Patents by Inventor François Rigenbach

François Rigenbach 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).

  • Use of hydrophilic penetration agents in dermatological compositions for the treatment of onychomycoses, and corresponding compositions
    Patent number: 6455592
    Abstract: The hydrophilic penetration agents customarily used for the transcutaneous penetration of active ingredients are, surprisingly, found to improve the penetration of antifungal agents through the nails. A corresponding dermatological composition contains at least one antifungal agent chosen, in particular, from among those of the allylamine family, such as terbinafine-HCl and naftifine-HCl; at least one hydrophilic penetration agent chosen, in particular, from among the glycols, glycol monoethers, glycol diethers, dimethylsulphoxide, caprolactam, dimethylisosorbide, isopropylidene glycerol, dimethylimidazolidinone, ethyl lactate, the polyoxyethylenated C8-C10 glycerides, polyethylene glycol 20 glyceryl laurate and dimethylacetamide; and a water-alcohol solvent medium which dissolves the said antifungal agent(s) and in which the said penetration agent(s) is (or are) at least partially miscible.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: September 24, 2002
    Assignee: Novartis AG
    Inventors: Jean-Pierre Laugier, Marie-France Rude, Philippe Touzan, François Rigenbach
  • Use of hydrophilic penetration agents in dermatological compositions for the treatment of onychomycoses, and corresponding compositions
    Patent number: 6143793
    Abstract: The hydrophilic penetration agents customarily used for the transcutaneous penetration of active ingredients are, surprisingly, found to improve the penetration of antifungal agents through the nails. A corresponding dermatological composition contains at least one antifungal agent chosen, in particular, from among those of the allylamine family, such as terbinafine-HCl and naftifine-HCl; at least one hydrophilic penetration agent chosen, in particular, from among the glycols, glycol monoethers, glycol diethers, dimethylsulphoxide, caprolactam, dimethylisosorbide, isopropylidene glycerol, dimethylimidazolidinone, ethyl lactate, the polyoxyethylenated C.sub.8 -C.sub.10 glycerides, polyethylene glycol 20 glyceryl laurate and dimethylacetamide; and a water-alcohol solvent medium which dissolves the said antifungal agent(s) and in which the said penetration agent(s) is (or are) at least partially miscible.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: November 7, 2000
    Assignee: Novartis AG
    Inventors: Jean-Pierre Laugier, Marie-France Rude, Philippe Touzan, Francois Rigenbach