A modified yeast consuming l-arabinose
CA 2483997 C · Owner: Forskarpatent I Syd Ab · Inventors: Boles, Eckhard; Becker, Jessica
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for producing a L-arabinose utilizing yeast stain for the production ethanol whereby a yeast strain is , modified by introducing and expressing araAgene (L-arabinose isomerase) araB , gene (L-ribulokinase D121-N) and araD gene (L-ribulose-5-P 4-epimerase) and carrying additional mutations in its genome or overexpressing a TAL1 (transaldolase) gene, enabling it to consume L-arabinose to use it as the , only carbon source, and to produce ethanol as well as a method for producing , ethanol using such a modified strain.
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 May 7, 2003 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 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.