An injection made from ixeris sonchifolia hance for treatment of cardio-cerebral vascular diseases and fundus diseases and method of producing thereof
CA 2487245 A1 · Owner: Zhang, Ruixiang · Inventors: Zhang, Ruixiang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention discloses an injection made from Chinese herb Ixeris Sonchifolia Hance for treatment of cardio-cerebral vascular disease and fundus disease and method of producing thereof. The injection is a form of lyophilized powder in which the rate of flavone to adenosine is 5mg: 15~g or 5mg:30~g. The flavone and adenosine from Ixeris Sonchifolia Hance is more stable in the lyophilized powder form than in liquid form for injection so that it is easy to control the quality of the product so as to make the medicament safe and effective. It has benefit in store.
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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 21, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 21, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 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.
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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.