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Expired Canadian patentCanada

Method and system for fitting a hearing aid

CA 2625101 C · Owner: Nordahn, Morten Agerbaek · Inventors: Jessen, Anders Holm; Nordahn, Morten Agerbaek; Topholm, Jan

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Abstract From the Canadian patent

In a method and system for fitting the gain of a hearing aid for a hearing impaired , person, a loop gain of the hearing aid in the ear canal of the hearing impaired person , is measured for at least one frequency band. An effective vent parameter such as a , corresponding vent diameter for the hearing aid by determining a vent parameter that , generates the best fit between a modelled and the measured loop gain is estimated, a , vent effect value based on the estimated effective vent parameter is determined, and , a corrected hearing aid gain is provided by means of the determined vent effect, value. The invention provides a method a computer program, a system for , fitting a …

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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 October 17, 2005 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 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.
FiledOctober 17, 2005
GrantedFebruary 21, 2012
Term endedOctober 17, 2025
Patent numberCA 2625101 C
Classification (IPC)H04R25/00

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2006200820102012201420162018202020222024Application filedOct 17, 2005Patent grantedFeb 21, 2012Term endedOct 17, 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.