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Expired Canadian patentCanada

Auto-oxidation production of hydrogen peroxide via oxidation in a microreactor

CA 2620353 C · Owner: Peroxychem Llc · Inventors: Hammack, Kevin; Sethi, Dalbir S.; Dada, Emmanuel A.

CIPO record

Overview

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

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Abstract From the Canadian patent

Hydrogen peroxide is prepared by an auto-oxidation method via oxidation in a microreactor. A working solution containing a reactive carrier compound is hydrogenated with hydrogen in a first step and is subsequently oxidized in a microreactor to produce hydrogen peroxide.

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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 August 30, 2006 and granted May 28, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 30, 2006
GrantedMay 28, 2013
Term endedAugust 30, 2026
Patent numberCA 2620353 C
Classification (IPC)C01B15/01 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 30, 2006Patent grantedMay 28, 2013Term endedAug 30, 2026

Sources & verification

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