Terminally-branched polymeric linkers and polymeric conjugates containing the same
CA 2437986 A1 · Owner: Choe, Yun Hwang · Inventors: Choe, Yun Hwang; Greenwald, Richard B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Terminally-branched polymeric prodrug platforms capable of high degrees of loading are disclosed. In preferred aspects of the invention the prodrug , platform releases multiple parent compounds after each branch holding the active agent undergoes a benzyl elimination reaction. Methods of preparing the prodrugs and using the same in the treatment of mammals are also disclosed. In one preferred aspect, polymeric conjugates such as formula (I) are provided.
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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 February 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2024.
- 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
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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.