Use of granular materials based on pyrogenically produced silicon dioxide in pharmaceutical compositions
CA 2465369 A1 · Owner: Meyer, Juergen · Inventors: Meyer, Juergen; Heym, Juergen; Hasenzahl, Steffen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of granular materials based on pyrogenically produced silicon dioxide in pharmaceutical compositions, the pharmaceutical compositions per se as , well as an adsorbate consisting of the granular material and at least one further substance selected from pharmaceutical active constituents and auxiliary substances, and the production of such adsorbates are described.
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 July 6, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2024.
- 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.