Polydisperse double emulsion, corresponding monodisperse double emulsion and method for preparing the monodisperse emulsion
CA 2385455 C · Owner: Leal Calderon, Fernando · Inventors: Bibette, Jerome Michel Jacques; Gorria, Philippe; Leal Calderon, Fernando
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a fractionable polydisperse stable double oil-in-water emulsion consisting of 50 to 95 wt.%, relative to the total weight of the double emulsion droplets of an invert monodisperse emulsion Ei dispersed in a continuous aqueous phase; the continuous aqueous phase comprising a polysaccharide thickening agent in a proportion of 1 to 10 wt.% relative to the total weight of the continuous aqueous phase; a water-soluble ethylene oxide and propylene oxide block copolymer as surfactant; and an osmotic pressure balancing agent; the emulsion Ei having a viscosity not higher than the viscosity of the continuous aqueous phase and consisting of 50 to 95 wt.% relative to the total …
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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 4, 2000 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 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.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.