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Expired Canadian patentCanada

Glycerol-peg-derivatives as inhibitors of cyclooxygenase-2 and phospholipase-a2

CA 2447811 C · Owner: Keller, Brian · Inventors: Keller, Brian

CIPO record

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Abstract From the Canadian patent

The present invention comprises a group of related lipid molecules and , methods for their use, that may be used to treat inflammation and certain inflammation related diseases. The group of related lipid molecules are capable of inhibiting certain enzyme systems including phospholipase-A2 and , cyclooxygenase-2. The group of related lipid molecules of the invention may be characterized by specific structural characteristics or by specific , biological activity, including inhibition of the previously listed enzymes. With regard to the structural characteristics the group of related lipid , molecules of the invention are characterized by the following three structural features: a …

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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 22, 2002 and granted November 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 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.
FiledMarch 22, 2002
GrantedNovember 29, 2011
Term endedMarch 22, 2022
Patent numberCA 2447811 C
Classification (IPC)C07C69/22 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMarch 22, 2002Patent grantedNov 29, 2011Term endedMarch 22, 2022

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