Granulation process
CA 2477284 A1 · Owner: Lindner-Olsson, Elisabeth · Inventors: Hansson, Henri; Lindner-Olsson, Elisabeth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the manufacture of a corn starch granulate possessing resistance to enzymatic degradation upon oral administration comprising the steps: a) , granulating native corn starch by cautions mixing of a granulation fluid comprising methyl cellulose or ethyl cellulose as a binder ethanol or water , as a solvent, corn starch and a sweetener; b) subjecting the granulated material resulting from step a) to wet sieving; c) drying the granulate obtained in step b) at a temperature less than about 55 ~C to avoid gelatinization of the corn starch; and d) sizing the dried granulate from step c) by dry sieving. A corn starch granulate and a corn starch granulate tablet.
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 February 25, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.
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.