Crystallization method and apparatus using an impinging plate assembly
CA 2500535 A1 · Owner: Pfizer Products Inc. · Inventors: Am Ende, David Jon; Brenek, Steven James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crystallization process for generating a pharmaceutical product from solutions of pharmaceutically active compounds or their reactive intermediates employs fluid jet streams containing pharmaceutically active ingredients appropriate anti-solvents and/or their reactive intermediates capable of producing a pharmaceutical product with desired particle size characteristics upon mixing, chemical reaction, nucleation and precipitation. The jet streams are directed towards and impinging plate and mixing occurs as the jet streams , impinge the plate at a desired area of impact.
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 21, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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.