Oral pharmaceutical compositions comprising cyclosporin
CA 2494761 C · Owner: Patel, Satishchandra Punambhai · Inventors: Patel, Satishchandra Punambhai
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The application discloses a pharmaceutical composition suitable for oral administration in the form of a homogeneous solution which on exposure to water or gastrointestinal fluids forms an emulsion having a particle size of less than 5 microns, the solution comprising: (a) a pharmaceutically effective amount of a cyclosporin, in particular Cyclosporin A (b) a carrier medium , comprising a dialkyl ester of an aliphatic or aromatic dioic acid the alkyl , group of said dialkyl ester having from 2 to 8 carbon atoms and said , aliphatic or aromatic dioic acid having from 6 to 20 carbon atoms (c) a co-, carrier having a hydrophilic balance (HLB) of from 3 to 6 and (d) a non-ionic , surfactant …
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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 July 31, 2003 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term 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
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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.