Inhibitors of aspartyl protease
CA 2380858 C · Owner: Miller, John Franklin · Inventors: Price, Stephen; Schairer, Wayne Carl; Miller, John Franklin
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 a novel class of sulfonamides which are aspartyl protease inhibitors having the structure of formula I:, (see formula I) In one embodiment, this invention relates to a novel class of HIV aspartyl protease inhibitors characterized by specific structural and physicochemical features. This invention also relates to pharmaceutical compositions comprising these compounds. The compounds and pharmaceutical compositions of this invention are particularly well suited for inhibiting HIV-1 and HIV-2 protease activity and consequently may be , advantageously used as anti-viral agents against the HIV-1 and HIV-2 viruses. This invention also relates to methods …
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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 June 8, 2000 and granted December 6, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2022.
- 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.