Process for the production of fine granules
CA 2120659 A1 · Owner: Novartis Ag · Inventors: Schneeberger, Ricardo; Horisberger, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the production of fine granules Abstract, In a process for the production of fine granules a product melt (M) from a melt tank (2) is preferably supercooled, and then metered or sprayed into a high-speed mixer (5) and there brought into contact with dry powder, powder mixtures or also with centrifuged and then washed crystallisate (P) from a silo (6). During that operation granules are formed by, crystallisation which are discharged from the high-speed mixer (5) subsequently dried, and/or cooled in a drier (8) for example a moving bed drier or a fluidised bed drier and, then removed from the drier (8). Prior to cooling the product melt (M) is mixed with a, solvent (S) as a …
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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 6, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 6, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2016.
- 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.