Fluid bed process for the production of enzyme granules
CA 2407329 A1 · Owner: Happel, Antonius Johannes Maria · Inventors: Meesters, Gabriel Marinus Henricus; Barendse, Rudolf Carolus Maria; Happel, Antonius Johannes Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention describes a process for the continuous production of enzyme granules characterised in that:(h) a liquid enzyme preparation containing one or more enzymes is produced(i) optionally additives are added to the liquid enzyme preparation obtained in (a)(j) one or more liquid enzyme preparations obtained in (a) or (b) are sprayed into a fluidised bed by means of spray nozzles(k) fine material that escapes from the fluid bed with the off-gas is separated off and returned to the fluidised bed as nuclei for the granule formation(l) granules of a predetermined size are formed by adjusting the sifting gas stream(m) the finished granules are discharged via one or more …
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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 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2023.
- 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.