Cyclodextrin preparations
CA 2434077 A1 · Owner: Yamauchi, Hitoshi · Inventors: Nagase, Yukihiko; Yamauchi, Hitoshi; Suzuki, Norio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A water-based preparation or aqueous solution which is a transparent aqueous solution containing a cyclodextrin and a sufficient amount of ebselen and usable as an injection; an injection comprising the aqueous solution; a dripping preparation comprising the aqueous solution; a process for producing an aqueous solution of ebselen and a cyclodextrin which comprises dissolving ebselen in a water-miscible organic solvent separately dissolving a , cyclodextrin in an aqueous medium mixing the two solutions, subsequently drying the mixture, and mixing the resultant dried mixture with an aqueous medium; a dry pharmaceutical preparation which comprises ebselen and a cyclodextrin; and a …
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 December 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2023.
- 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.