Methods for producing l-amino acids
CA 2377693 C · Owner: Archer-Daniels-Midland Company · Inventors: Hanke, Paul D.; O'Donohue, Michael R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates, in general to a method of producing L-amino , acids comprising culturing altered bacterial cells having increased amounts of NADPH as compared to unaltered bacterial cells whereby L-amino acids yields from said altered bacterial cells are greater than yields from unaltered bacterial cells. The invention also relates to a gene encoding phosphoglucoisomerase.
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 July 21, 2000 and granted November 8, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 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.