Immunoglobulin formulation and method of preparation thereof
CA 2515444 C · Owner: Biogen Idec Ma Inc. · Inventors: Buckley, Shaun E.; O'Connor, Barbara Horsey; Phillips, Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stable aqueous pharmaceutical formulation comprising a therapeutically effective amount of an antibody, polysorbate 80 a buffer which inhibits , polysorbate oxidation is described along with methods of making the preparation. Also described are formulations with high antibody concentrations which maintain fixed volumes and which may be used on patients of variable weight.
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 February 9, 2004 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 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.