Oily compositions containing highly fat-soluble drugs
CA 2404381 A1 · Owner: Nishihara, Yoshitaka · Inventors: Nishihara, Yoshitaka; Yoshikawa, Takayoshi; Kinoshita, Haruki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Oily compositions which contain as the principal agent highly fat-soluble drugs including compounds of the general formula (I) pharmaceutically , acceptable salts thereof and solvates of both, and each further contain (i) a triester of glycerol with a medium-chain fatty acid and/or an ester of propylene glycol with a medium-chain fatty acid (ii) a triester of glycerol , with a long-chain fatty acid and (iii) a surfactant wherein the rings A B , and C are each an optionally substituted aromatic carbo- or hetero-cycle or , the like with the proviso that when one or more of the rings A B and C are , each a 5-membered heterocycle the corresponding W1, W2 and/or W3 are each a bond; X is 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 March 29, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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.