.alpha.-amylase mutants
CA 2745783 C · Owner: Novozymes A/S · Inventors: Bisgard-Frantzen, Henrik; Borchert, Torben Vedel; Svendsen, Allan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a variant of a parent Termamyl-like .alpha.-amylase comprising mutations in two, three, four five or six regions/positions. The variants have increased thermostability at acidic pH and/or at low Ca2+ concentrations (relative to the parent). The invention also relates to a DNA construct comprising a DNA sequence encoding an .alpha.-amylase variant of the invention a recombinant expression vector which carries a DNA construct of the invention a cell which is transformed with a DNA construct of the invention the use of an .alpha.- amylase variant of the invention for washing and/or dishwashing textile desizing, starch liquefaction, a detergent additive comprising an …
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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 October 13, 1998 and granted May 24, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2020.
- 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.