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Expired Canadian patentCanada

Fuel cell components including immobilized heteropolyacids

CA 2624459 C · Owner: Vijayendran, Bhima R. · Inventors: Vijayendran, Bhima R.; Lalgudi, Ramanathan S.; Sayre, Jay R.

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Abstract From the Canadian patent

A fuel cell component is made with a composite including a proton conducting polymer, a water insoluble proton conducting inorganic material and a , heteropolyacid immobilized by chemically bonding to the inorganic material. In another embodiment, the fuel cell component is made with a composite including a non- proton conducting polymer, a water insoluble inorganic material and a , heteropolyacid immobilized by chemically bonding to the inorganic material the heteropolyacid causing the composite to show proton conductivity. In a further embodiment, the fuel cell component is made with a composite comprising a proton conducting polymer a water insoluble proton conducting , inorganic …

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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 29, 2006 and granted February 17, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2026.
  • 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 29, 2006
GrantedFebruary 17, 2015
Term endedSeptember 29, 2026
Patent numberCA 2624459 C
Classification (IPC)H01M2/16

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 29, 2006Patent grantedFeb 17, 2015Term endedSep 29, 2026

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