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Expired Canadian patentCanada

Process of designing a drug

CA 2653517 C · Owner: Olejniczak, Edward T. · Inventors: Fesik, Stephen W.; Hajduk, Philip J.; Olejniczak, Edward T.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention provides a process of designing compounds which bind to a specific target molecule. The process includes the steps of a) identifying a first ligand to the target molecule using two-dimensional 15N/1H NMR correlation spectroscopy; b) identifying a second ligand to the target molecule using two-dimensional 15N/1H NMR correlation spectroscopy; c) forming a ternary complex by binding the first and second ligands to the target molecule; d) determining the three-dimensional structure of the ternary complex and thus the spatial orientation of the first and second ligands on the target molecule; and e) linking the first and second ligands to form the drug wherein the spatial …

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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 November 13, 1996 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 13, 1996
GrantedOctober 30, 2012
Term endedNovember 13, 2016
Patent numberCA 2653517 C
Classification (IPC)G01N33/15 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 13, 1996Patent grantedOct 30, 2012Term endedNov 13, 2016

Sources & verification

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