Patent Yard Sign in
Expired Canadian patentCanada

.delta.4-desaturase genes and uses thereof

CA 2446439 C · Owner: Das, Tapas · Inventors: Pereira, Suzette L.; Thurmond, Jennifer M.; Das, Tapas

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The subject invention relates to the identification of genes involved in the desaturation of polyunsaturated fatty acids at carbon 4 (i.e. ".DELTA.4desaturase"). In particular, .DELTA.4-desaturase may be utilized for example, in the conversion of adrenic acid to .omega.6-docosapentaenoic acid and in the conversion of .omega.3-docosapentaenoic acid to docosahexaenoic acid. The polyunsaturated fatty acids produced by use of the enzyme may be added to pharmaceutical compositions, nutritional compositions animal feeds, as well , as other products such as cosmetics.

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 May 2, 2002 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 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.
FiledMay 2, 2002
GrantedJune 5, 2012
Term endedMay 2, 2022
Patent numberCA 2446439 C
Classification (IPC)C12N15/53 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 2, 2002Patent grantedJune 5, 2012Term endedMay 2, 2022

Sources & verification

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