Drug delivery matrices to enhance wound healing
CA 2445239 C · Owner: Eidgenossische Technische Hochschule Zurich · Inventors: Weber, Franz; Hubbell, Jeffrey Alan; Schense, Jason C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a more efficient entrapment of bioactive molecules within a , matrix for the controlled delivery of these compounds for therapeutic healing applications. The matrix may be formed of natural or synthetic compounds. The primary , method of entrapment of the bioactive molecule is through precipitation of the bioactive , molecule during gelation of the matrix either in vitro or in vivo. The , bioactive molecule is deglycosylated to reduce its effective solubility in the matrix to retain it more , effectively within the matrix. Preferably the bioactive factors are deglycosylated members , of the cystine knot growth factor superfamily and particular within the , …
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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 April 25, 2002 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 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
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.