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Canadian application, no grantCanada

Method and apparatus for estimating odor concentration using an electronic nose

CA 2314237 A1 · Owner: Coleman, Richard Nigel · Inventors: Qu, Guoliang; Feddes, John R.; Coleman, Richard Nigel

CIPO record

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Abstract From the Canadian patent

A system and method for obtaining an estimate of the concentration of an odor in an air, sample from data obtained by evaluating the sample with a sensor-array type electronic nose. Principal components analysis is applied to a set of air sample data including sensor-array data, obtained from evaluating the air sample with the sensor-array type electronic nose and, measurements of the humidity of the air sample and clean reference air used by the electronic, nose to obtain a predetermined number of principal components of the air sample data. The, principal components obtained from the air sample are used as inputs to a neural network to, obtain as output an estimate of the …

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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 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2022.
  • 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 18, 2000
GrantedNo grant recorded
Term endedJuly 18, 2020
Patent numberCA 2314237 A1
Classification (IPC)G01N15/06 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJuly 18, 2000Term endedJuly 18, 2020

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