Xylanases with enhanced thermophilicity and alkalophilicity
CA 2435527 C · Owner: National Research Council Of Canada · Inventors: Sung, Wing L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a xylanase or a modified xylanase enzyme , comprising at least one substituted amino acid residue at a position selected from the group consisting of amino acid 11 116, 118, 144 and 161, the , position determined from sequence alignment of the modified xylanase with Trichoderma reesei xylanase II amino acid sequence. The xylanases described herein exhibit improved thermophilicity alkalophilicity, expression , efficiency or a combination thereof, in comparison to a corresponding native xylanase.
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 November 20, 2002 and granted January 21, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2024.
- 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.