Method of increasing recovery of heterologous active enzymes produced in plants
CA 2412447 A1 · Owner: Genencor International, Inc. · Inventors: Ward, Michael; Hood, Elizabeth; Bailey, Michele
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of increasing recovery of active enzyme produced in a plant is provided where the enzyme requires a transitional metal cofactor for activation. The metal cofactor is supplied to the enzyme during plant development, during extraction, or after extraction. Recovery of active enzyme is also provided by incubating the extracted enzyme at a non-enzyme degrading temperature. Addition of a negative ion salt further improves active enzyme recovery. Optimum salt concentrations for recovery of laccase from plants using copper solutions is provided.
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 June 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 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.