Polyaminoacids functionalized by alpha tocopherol and uses thereof, particular for therapeutic applications
CA 2486944 C · Owner: Chan, You-Ping · Inventors: Chan, You-Ping; Breyne, Olivier; Angot, Stephanie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns novel biodegradable polyaminoacid materials useful in particular for vectoring active principle(s). The invention also concerns novel pharmaceutical cosmetic, dietetic or phytosanitary compositions based on said polyaminoacids. The invention aims at providing a novel polymer raw material capable of being used for vectoring active principles and enabling optimal fulfillment of all specified requirements: biocompatibility biodegradability, easy and inexpensive transformation into particles vectoring active principles said particles being themselves capable of forming colloidal suspensions of being easily associated with numerous active principles and of releasing said …
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 June 3, 2003 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2025.
- 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.