Proteins for use as carriers in conjugate vaccines
CA 2403993 A1 · Owner: Gorringe, Andrew Richard · Inventors: Robinson, Andrew; Hudson, Michael John; Gorringe, Andrew Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Vaccine conjugates are described comprising a capsular polysaccharide antigen conjugated to a carrier molecule, which carrier molecule is a protein associated with iron uptake by pathogenic microorganisms. The vaccine conjugate may comprise second or additional antigens also conjugated to the carrier. In a preferred embodiment, the carrier is a transferrin binding protein, in particular TbpA or TbpB. Also described are methods for conjugating the antigen/s to the carrier molecule and to the use of , transferrin binding protein in the manufacture of a carrier-antigen conjugate for vaccination. Affinity matrices comprising immobilised ligand for an iron uptake protein, and the use …
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 March 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2023.
- 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.