Grafts for the repair of osteochondral defects comprising a hyaluronic acid derivative matrix and ceramic matrix
CA 2437440 C · Owner: Pavesio, Alessandra · Inventors: Pavesio, Alessandra; Callegaro, Lanfranco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns the preparation and use of a biocompatible bicomponent , material constituted by: (a) a three-dimensional matrix of hyaluronic acid derivatives with a structure containing empty spaces; (b) a porous three-, dimensional, matrix constituted by a ceramic material; (c) possibly containing pharmacologically or biologically active ingredients. The biocompatible bicomponent material of the present invention is used for the preparation of engineered, osteochondral grafts and for the repair or regeneration in vivo of structurally integrated osteochondral tissue.
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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 6, 2002 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 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.