Pharmaceutical dosage form capable of maintaining stable dissolution profile upon storage
CA 2494358 A1 · Owner: Bauer, Juliane M. · Inventors: He, Xiaorong; Gao, Ping; Bauer, Juliane M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a pharmaceutical dosage form comprising a fill material sealed in a gelatin capsule; the fill material comprises (a) a selective COX-2 inhibitory drug of low water solubility and (b) a primary or , secondary amine compound in an amount sufficient to inhibit cross-linking of gelatin in said gelatin capsule upon storage of the dosage form in a closed container maintained at 40 ~C and 75 % relative humidity for a period of 6 months.
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 31, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 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.