Method for preparing steroids modified by yeast fermentation
CA 2386419 A1 · Owner: Cauet, Gilles · Inventors: Cauet, Gilles; Lathe, Richard; Vico, Pedro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for producing hydroxylated and/or acetylated steroid comprising steps which consist in: culturing yeasts on a medium comprising at least a precursor of such hydroxylated and/or acetylated steroids; then isolating the hydroxylated and/or acetylated steroids from the medium after bioconversion. Said method is characterised in that said yeasts are yeasts transformed so as to express the product of Cyp7b gene. The invention also concerns the modified yeast strains.
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 October 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 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.