Novel crystalline compounds
CA 2536052 C · Owner: Pise, Abhinay · Inventors: Gray, Jason; Arul, Ramakrishnan; Rawat, Ajay Singh
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 novel crystalline forms of the platelet aggregation inhibitor (+)-(S)-methyl-2-(2-chlorophenyl)-(6,7-dihydro-4H-thieno3,2-cpyrid-5-yl)acetate clopidogrel (1), in the form of hydrogen bromide salts identified as polymorph forms 1, 2 and 3. The present invention further relates to processes for preparing such forms pharmaceutical compositions comprising such forms and uses for such forms and compositions. The pharmaceutical compositions may be used in particular, for inhibiting platelet aggregation or for treating preventing or managing thrombosis, atherothrombosis an atherothrombotic event, ischaemic stroke myocardial infarction, non-Q-wave myocardial …
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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 September 9, 2004 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2026.
- 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.