Targeted glycosaminoglycan polymers by polymer grafting and methods of making and using same
CA 2536016 C · Owner: The Board Of Regents Of The University Of Oklahoma · Inventors: Deangelis, Paul L.; Jing, Wei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to methodology for polymer grafting by a polysaccharide synthase and, more particularly polymer grafting using the , hyaluronate or chondroitin or heparin/heparosan synthases from Pasteurella in , order to create a variety of glycosaminoglycan oligosaccharides having a natural or chimeric or hybrid sugar structure with a targeted size that are substantially monodisperse in size.
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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 August 14, 2003 and granted January 10, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2025.
- 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.