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Expired Canadian patentCanada

Computer neural network regulatory process control system and method

CA 2066237 C · Owner: Skeirik, Richard D. · Inventors: Skeirik, Richard D.

CIPO record

Overview

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Abstract From the Canadian patent

A computer neural network regulatory process control system and method allows for the elimination of human operator from real time control of the process. The present invention operates in three modes: training, operation (prediction) and retraining. In the training, mode, training input data is produced by the control adjustment made to the process by the human operator. The neural network of the present invention is trained by producing output data using input data for prediction. The output data is compared with the training input data to produce error data, which is used to adjust the weight(s) of the neural network. When the error data is less than a preselected criterion train-, …

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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 July 25, 1991 and granted October 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 1991
GrantedOctober 1, 2002
Term endedJuly 25, 2011
Patent numberCA 2066237 C
Classification (IPC)G06F15/18 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 25, 1991Patent grantedOct 1, 2002Term endedJuly 25, 2011

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