Method for obtaining a tgf-beta enriched protein fraction in activated form, protein fraction and therapeutic applications
CA 2434303 C · Owner: Jouan, Pierre · Inventors: Jouan, Pierre; Fauquant, Jacques; Bourtourault, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for obtaining a highly enriched TGF-.beta. protein fraction in activated form from a liquid solution rich in proteins said to be soluble in the aqueous phase of milk and/or of whey said method comprising the following steps: a) adjusting soluble proteins purified at a concentration between 5 to 30 g/litre of solution ; b) precipitating part of the whey proteins by acid treatment of the solution thus obtained to a pH ranging between 4 and 5.5 and at a temperature ranging between 55 ·C and 68 ·C ; c) carrying out a microfiltration of the treated solution by diafiltration so as to obtain respectively a microfiltration retentate and a microfiltrate d) reuperating …
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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 July 12, 2002 and granted May 14, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 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.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.