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Canadian application, no grantCanada

Alcohol dehydrogenases with high solvent and temperature stability

CA 2474905 A1 · Owner: Ciba Specialty Chemicals Holding Inc. · Inventors: Kroutil, Wolfgang; Kosjek, Birgit; Faber, Kurt

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention relates to biocatalysts showing alcohol dehydrogenase activity obtainable from Rhodococcus ruber, their preparation their use in the , oxidation of secondary alcohols and/or the reduction of ketones as well as , nucleic acids coding for these alcohol dehydrogenases and microorganisms transformed with nucleic acids coding for these biocatalysts and their use for producing the blocatalyst or oxidizing secondary alcohols and/or reducing ketones.

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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 March 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 10, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 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.
FiledMarch 10, 2003
GrantedNo grant recorded
Term endedMarch 10, 2023
Patent numberCA 2474905 A1
Classification (IPC)C12N15/53 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 10, 2003Term endedMarch 10, 2023

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.