Delivery of drug esters through an inhalation route
CA 2446904 A1 · Owner: Rabinowitz, Joshua D. · Inventors: Zaffaroni, Alejandro C.; Rabinowitz, Joshua D.
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 drug esters through an inhalation route. Specifically, it relates to aerosols containing drug esters that are used in inhalation therapy. In a composition aspect of the present invention, the aerosol comprises particles comprising at least 5 percent by weight of drug ester. In a method aspect of the present invention a drug , ester is delivered to a mammal through an inhalation route. The method comprises: a) heating a composition, wherein the composition comprises at least 5 percent by weight of drug ester to form a vapor; and, b) allowing the vapor to cool, thereby forming a condensation aerosol comprising particles which is inhaled …
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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 May 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 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.