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Canadian application, no grantCanada

Method of applying non-linear dynamics to control a gas-phase polyethylene reactor operability

CA 2470608 A1 · Owner: Daw, Stuart · Inventors: Finney, Charles; Daw, Stuart; Nguyen, Ke

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 describes a method for determining reactor continuity of a polymerization reactor by non-linear dynamics. Specifically the , invention_relates to a method of analying system variables to indicate gas phase reactor continuity in real-time and controlling the reactor continuity to maintain operability.

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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 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 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.
FiledNovember 22, 2002
GrantedNo grant recorded
Term endedNovember 22, 2022
Patent numberCA 2470608 A1
Classification (IPC)G01N29/14 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 22, 2002Term endedNov 22, 2022

Sources & verification

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