Open-celled substrates for drug delivery
CA 2462576 A1 · Owner: Alexza Molecular Delivery Corporation · Inventors: Lu, Amy T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to the delivery of drugs through an inhalation route. Specifically, it relates to the information of drug thermal vapors from a heated open-celled substrate (106) for use in inhalation therapy. In a method aspect of the present invention a method of delivering a drug to a , mammal through an inhalation route is provided which comprises heating a composition to form a thermal vapor, which is inhaled by the mammal wherein , the composition comprises a drug and wherein the composition is coated onto a substrate, and wherein the substrate has a high surface to volume ratio high , porosity, and a three-dimensional network of interconnected cells. In a device …
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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 November 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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.