Permeation enhancers
CA 2446619 C · Owner: Merrion Biopharma Limited · Inventors: Raoof, Araz A.; Gudipati, Mangaraju
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pharmaceutical composition comprising a drug and a permeation enhancer that comprises a multi-carbon backbone having a functional group and also one or , more side chains which have one or more carbon atoms and optionally, one or , more functional groups.
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 May 13, 2002 and granted April 26, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2024.
- 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.