Modified macromolecules and methods of making and using thereof
CA 2549295 C · Owner: Prestwich, Glenn D. · Inventors: Prestwich, Glenn D.; Liu, Yanchun; Shu, Xiao Zheng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described herein are compounds such as macromolecules that have been modified in order to facilitate crosslinking by introduction of at least one hydrazidereactive group and /or aminooxy-reactive group and methods of making and , using thereof for scar-free wound healing for delivering bioactive agents or , living cells for preventing adhesion after a surgical procedure or for bone and cartilage repair. The macromolecule can be an oligonucleotide a necleic , acid, a polypeptide, a lipid a glycoprotein, a glycolipid, a polysaccharide a protein or a synthetic polymer, preferably a glycosaminoglycan like hyaluronan.
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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 December 6, 2004 and granted May 3, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.