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Expired Canadian patentCanada

Application of abnormal event detection technology to olefins recovery trains

CA 2579658 C · Owner: Mclain, Richard B. · Inventors: Wang, Robert K.; Mclain, Richard B.; Woo, Stephen S.

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Abstract From the Canadian patent

The present invention is a method for detecting an abnormal event for process units of an ethylene processing system. The method compares the operation of the process units to a model developed by principal components analysis of normal operation for these units. If the difference between the operation of a process unit and the normal operation indicates an abnormal condition then , the cause of the abnormal condition is determined and corrected.

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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 September 9, 2005 and granted January 12, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2025.
  • 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.
FiledSeptember 9, 2005
GrantedJanuary 12, 2016
Term endedSeptember 9, 2025
Patent numberCA 2579658 C
Classification (IPC)G06F11/30 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 9, 2005Patent grantedJan 12, 2016Term endedSep 9, 2025

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