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Expired Canadian patentCanada

System and method for eliminating short circuit current paths in photovoltaic devices

CA 1209233 A · Owner: Energy Conversion Devices, Inc. · Inventors: Izu, Masatsugu; Cannella, Vincent D.

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Abstract From the Canadian patent

A system and method for detecting and eliminating a short circuit current path through photovoltaic device of the type including least one semiconductor region (82) overlying a substrate and a layer of conductive light transmissive material overlying the at least one semiconductor region is disclosed. The short circuit current path extends through the at least one semiconductor region from the substrate to the layer of conductive light transmissive material and is eliminated by increasing substantially the resistivity of the short circuit current path by removing the transparent conductive material from electrical contact or connection with the short circuit current path. The short circuit …

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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

  • Granted August 5, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 2003.
  • 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 18, 1983
GrantedAugust 5, 1986
Term endedAugust 5, 2003
Patent numberCA 1209233 A
Classification (IPC)H01L31/04 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedOct 18, 1983Patent grantedAug 5, 1986Term endedAug 5, 2003

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