Gel-microemulsion formulations
CA 2367266 A1 · Owner: Uckun, Fatih M. · Inventors: D'Cruz, Osmond; Yiv, Seang; Li, Mingshu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pharmaceutical composition adapted for use as a spermicide the composition , comprising a gel-microemulsion comprising an oil-in-water microemulsion and a polymeric hydrogel. The gel-microemulsion can be used in a spermicidal method. Also, a gel-microemulsion pharmaceutical composition adapted for use as a formulation base for additional therapeutic agents. Examples of additional agents include anti-microbial agents and spermicidal agents. Such gelmicroemulsions with additional therapeutic agents can be used in methods for appropriate therapeutic treatment. Also a gel-microemulsion pharmaceutical , composition that is adapted for use as both a spermicide and formulation base for …
Read the whole patent
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 March 19, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.