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Expired Canadian patentCanada

An enzyme for catalyzing biosynthesis of piperitol and/or sesamin

CA 2540367 C · Owner: Tanaka, Yoshikazu · Inventors: Tanaka, Yoshikazu; Ono, Eiichiro

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 present invention provides an enzyme that catalyzes the reaction producing piperitol from pinoresinol, and a reaction producing sesamin from piperitol. The invention also provides a gene that encodes such enzyme. Further the , invention provides a vector and transformant including a gene encoding the enzyme, and a producing method of the protein using the transformant.

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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 September 29, 2004 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 2004
GrantedSeptember 24, 2013
Term endedSeptember 29, 2024
Patent numberCA 2540367 C
Classification (IPC)C12N9/04 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 29, 2004Patent grantedSep 24, 2013Term endedSep 29, 2024

Sources & verification

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