Carotene hydroxylase and method for producing xanthophyll derivatives
CA 2365906 A1 · Owner: Linden, Hartmut · Inventors: Linden, Hartmut; Sandmann, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to proteins with an enzymatic activity for converting .beta.-carotene into zeaxanthin or canthaxanthin into astaxanthin to nucleic , acids that code for these proteins to nucleic acid constructs containing these nucleic acids, to genetically modified organisms in which the genetic modification causes or increases the gene expression of this nucleic acid compared with a wild type, and to methods for producing xanthophyll derivatives.
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 March 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.