Novel mutant allergens
CA 2429172 C · Owner: Ipsen, Henrik · Inventors: Nedergaard Larsen, Jorgen; Spangfort, Michael Dho; Holm, Jens
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel recombinant allergens with multiple mutations and reduced IgE binding affinity are disclosed. The allergens are non-naturally occurring mutants of naturally-occurring allergens. The overall .prop.-carbon backbone tertiary structure is essentially preserved. Also disclosed is a method for preparing such recombinant allergens as well as uses thereof.
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 November 16, 2001 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 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.