Harvesting yew biomass for extraction of taxanes and other natural products
CA 2512095 A1 · Owner: Perich, Steven L. · Inventors: Gallagher, Rex T.; Perich, Steven L.; Howe, Christopher D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for harvesting Yew biomass is disclosed. The process comprising the steps of: (i) harvesting the tops or roots of the Yew tree; (ii) washing the harvested material; (iii) drying the harvested material; and (iv) grinding the harvested material into a fine powder. The resulting fine powder may be used to make Yew pellets suitable for extracting taxanes and other natural products therefrom.
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 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 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.