Novel affinity ligands and their use
CA 2232626 C · Owner: Novo Nordisk A/S · Inventors: Pearson, James C.; Sproule, Kenneth; Li, Rongxiu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to novel affinity ligand-matrix conjugates comprising a ligand with general formula (a) which ligand is attached to a , support matrix in position (A) optionally through a spacer arm interposed between the matrix and ligand. The invention furthermore relates to these novel affinity ligand-matrix conjugates and the preparation and use thereof in the purification of proteinaceous materials such as e.g. immunoglobulins insulins, Factor VII, or human Growth Hormone or analogues derivates and , fragments thereof and precursors.
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 September 19, 1996 and granted November 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.