Poly-pegylated protease inhibitors
CA 2536873 C · Owner: Stochl, Mark · Inventors: Ley, Arthur C.; Stochl, Mark; Ladner, Robert Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are compounds that comprise: (i) a Kunitz domain polypeptide that comprises a Kunitz domain that binds to and inhibits a protease; and (ii) a plurality of polyethylene glycol moieties attached to the Kunitz domain polypeptide. Each accessible primary amine of the Kunitz domain polypeptide can be attached to one of the moieties. Also disclosed are related methods.
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 August 30, 2004 and granted September 10, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 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.