Use of an antioxidant in a dermatological and/or cosmetic composition
CA 2531186 C · Owner: Thorel, Jean-Noel · Inventors: Thorel, Jean-Noel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a dermatological and/or cosmetic composition which is intended for the treatment of acne seborrheic dermatitis and skin disorders associated with the formation of comedones. The invention is characterised in that it contains: as active principle at least one lipophilic antioxidant which is selected from the group comprising gallates flavonoids, butyl-hydroxytoluene (BHT) butyl-hydroxyanisole (BHA), octadecenedioic acid and hydroxydecanoic acid; and at least one second active principle in the form of a hydrophilic antioxidant selected from the group comprising mannitol vitamin C, lysine azelate, rutin and quercetin.
Read the whole patent
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 July 7, 2004 and granted April 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 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.