Method for producing solid forms of administration by melt extrusion
CA 2352874 A1 · Owner: Reinhold, Ulrich · Inventors: Hofmann, Jurgen; Lange, Armin; Kothrade, Stephan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing solid forms of administration by means of melt extrusion. A polymer binder at least one pharmaceutical , active agent and optionally other additives are mixed and the mixture is melted in an extruder and then extruded in the form of a continuous plastic product strand. The inventive method is characterised in that the extruder used is a planetary roller extruder (10) which preferably has one central spindle (13) and six planetary spindles (14).
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 November 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2021.
- 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.