Invert emulsion type composition containing at least one active agent sensitive to the presence of water, and its uses in cosmetics and in dermatology
CA 2514558 C · Owner: Galderma Research & Development, S.N.C. · Inventors: Astruc, Fanny; Brzokewicz, Alain; Orsoni, Sandrine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a composition containing at least one active agent sensitive to the presence of water characterized in that the , composition is an invert emulsion containing a glycolic or hydroglycolic dispersed hydrophilic phase, a lipophilic continuous phase and an emulsifier having an HLB of between 2 and 7. This invert emulsion makes it possible to avoid the crystallization of the active agent and/or its chemical degradation while having good stability and being well tolerated.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 3, 2004 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.