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Expired Canadian patentCanada

Solid-state photoelectric device

CA 2346294 C · Owner: Salafsky, Joshua S. · Inventors: Salafsky, Joshua S.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A solid state photovoltaic device is formed on a substrate and includes a photoactive channel layer interposed between a pair of electrodes. The photoactive channel layer includes a first material which absorbs light and operates as a hole carrier. Within the first material are nanoparticles of a second material which operate as electron carriers. The nanoparticles are distributed within the photoactive channel layer such that predominantly, the , charge path between the two electrodes at any given location includes only a single nanocrystal. Because a majority of electrons are channeled to the electrodes via single nanocrystal conductive paths the resulting architecture , is …

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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 8, 1999 and granted June 28, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2021.
  • 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 8, 1999
GrantedJune 28, 2011
Term endedOctober 8, 2019
Patent numberCA 2346294 C
Classification (IPC)H01L31/00 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedOct 8, 1999Patent grantedJune 28, 2011Term endedOct 8, 2019

Sources & verification

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