Biocompatible and biodegradable nanoparticles designed for proteinaceous drugs absorption and delivery
CA 2226166 C · Owner: Grandfils, Christian · Inventors: Grandfils, Christian; Teyssie, Philippe; Nihant, Nicole
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polymer blend obtainable by a process comprising the steps of intimate mixing a biocompatible polymer able to form nanoparticles and a biocompatible interacting agent for making the polymeric blend susceptible for a drug to be administered which interacting agent is able to preserve the activity of the drug to be administered and which interacting agent is able to control the release of the drug to be administered.
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 2, 1996 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2018.
- 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.