Oral itraconazole formulations and methods of making the same
CA 2437372 A1 · Owner: Namburi, Ranga Raju · Inventors: Kerr, John Elgin; Namburi, Ranga Raju
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing an itraconazole oral dosage from that is substantially free of residual methylene chloride comprises the steps of: (a) providing a working solution comprising an alcohol a strong acid (preferably , an inorganic acid or organic sulphonic acid) itraconazole, a water-soluble , polymer and water, with the itraconazole and the strong acid preferably present in the working solution in a ratio of 1 Mole itraconazole to 1-3 Moles acid; (b) providing particles formed from a pharmaceutically acceptable core material; (c) combining the working solution with the particles to produce itraconazole-coated particles; (d) drying the itraconazole-coated particles; and(e) …
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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 1, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 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
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.