Methods and dosage forms for improving the bioavailability of therapeutic agents
CA 2466032 A1 · Owner: Njiki, Laure Patricia Ouadji · Inventors: Njiki, Laure Patricia Ouadji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides controlled release dosage forms for oral administration. The dosage form comprises a therapeutic agent that is metabolized in the upper GI tract in combination with a controlled-release agent so as to be hydrodynamically balanced so that in contact with gastric , fluid, the dosage form has a bulk density less than one g/ml and therefore is buoyant in the gastric fluid. Such dosage form is retained in the stomach during the tinme when substantially all of the medicaments are released therefroom. Additionally, such dosage form will release the medicament over an extended period of time so that delivery of the therapeutic agent to the small intestine will …
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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 October 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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
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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.