Liquid matrix transforming its phase in living body and oral liquid preparation
CA 2477964 A1 · Owner: Yamasaki, Keiko · Inventors: Hamamoto, Hidetoshi; Yamasaki, Keiko; Fujii, Takeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is intended to provide a liquid matrix for medicinal use in which a drug can be easily solubilized, dispersed or suspended and which can be easily swallowed because of being a liquid, has favorable working properties in sterilization and so on and a high stability also exhibits an effect of , masking bitterness and gels in vivo so as to control the release speed and , liquid oral preparations using the same. Namely a liquid matrix which is a , liquid auxiliary facilitating the swallowing of a drug characterized by , containing a water-soluble polymer gelling under acidic conditions and the break stress of the gel being about 3.0x103 N/m2 or more. Liquid oral preparations having …
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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 March 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2025.
- 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.