Methods and compositions for galactosylated glycoproteins
CA 2293829 C · Owner: Raju, T. Shantha · Inventors: Raju, T. Shantha
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to novel glycoprotein glycoform preparations comprising the substantially homogenous glycoprotein glycoforms. More particularly the invention relates to substantially homogenous glycoprotein preparations comprising a particular Fc glycan and methods for producing detecting, enriching and purifying the glycoforms. The invention further relates to immunoglobulins and especially antibodies comprising a CH2 domain having a particular glycan. Provided are compositions including pharmaceutical compositions, methods of using the preparations as well as articles of manufacture comprising the preparations.
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 23, 1998 and granted June 14, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2020.
- 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.