B-glucuronidase inhibitor
CA 2093442 A1 · Owner: Kamataki, Tetsuya · Inventors: Kamataki, Tetsuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A inhibitor comprising at least one compound selected from the group consisting of baicalin oroxylin A-7-0-glucuronide and luteolin-3'-glucuronide; an extract of scutellaria root (baikal skullcap; Scutellariae Radix) and/or schizonepeta spike (Japanese catnip; Schizonepelae Spica); or a Chinese and Japanese traditional prescription comprised of scutellaria root (baikal skullcap; Scu tellariae Radix) and/or schizonepeta spike (Japanese catnip; Schizonepelae Spica) as a crude drug. The .beta.-glucuronidasa inhibitor can relieve the adverse effect, especially diarrhea, caused in the administration of a compound represented by the following formula I,
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 August 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 2014.
- 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.