Process for preparing quick dissolving, high loading ribavirin compositions
CA 2465159 A1 · Owner: Patel, Mahendra R. · Inventors: Patel, Mahendra R.; Matharu, Amol Singh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A quick dissolving, high loading ribavirin composition which is essentially free of ribavirin polymorphic forms, said composition is prepared by a process comprising: (a) mixing ribavirin, at least one disintegrant and/or at least one filler to form an homogenous mixture; (b) granulating the mixture in the presence of water to form a granulation; (c) drying the granulation; and (d) mixing at least one disintegrant and/or at least one lubricant with the granulation to produce a ribavirin composition wherein said ribavirin , composition comprises at least 80 weight percent of ribavirin based on the , total weight of the composition. The ribavirin compositions prepared by the wet …
Read the whole patent
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 October 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 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.