Buried contact, interconnected thin film and bulk photovoltaic cells
CA 2125580 A1 · Owner: Unisearch Limited · Inventors: Green, Martin Andrew; Wenham, Stewart Ross; Taouk, Michael Yousef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A semiconductor substrate material having a photovoltaic cell a , semiconductor substrate material having an integrated array of at least two photovoltaic cells in electrical series with one another, systems for the production of electricity and methods for the production of electricity are disclosed. In the semiconductor substrate material (301) having a photovoltaic cell (303 304), the, photovoltaic cell comprises at least one first type groove (305 306, 307) having walls doped with a first type dopant (308) the, first type groove having a first conducting material in conducting electrical contact with the first type doped walls and at least one second type groove (310, 311 312) having …
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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 December 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.