Aqueous carrier systems for lipophilic ingredients
CA 2376310 A1 · Owner: Nguyen, Nghi Van · Inventors: Nguyen, Nghi Van; Cannell, David W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition containing at least one organic phospholipid capable of forming bilayers in aqueous solution; at least one amphoteric surfactant; at least one nonionic surfactant present in an amount by weight equal to or greater than the amount of the phospholipid; at least one suspending agent present in an amount effective for maintaining a stable composition; and a lipophilic ingredient. The invention also relates to a delivery system for lipophilie ingredients containing the above components and an aqueous phase, wherein the , organic phospholipid amphoteric surfactant, and nonionic surfactant are present in a combined amount sufficient to allow the lipophilic ingredient to be …
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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. No grant is recorded for it in Canada; had it been granted, its 20-year term would have 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.