Stacked organic photosensitive devices
CA 2575776 C · Owner: Forrest, Stephen · Inventors: Forrest, Stephen; Uchida, Soichi; Xue, Jiangeng
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device is provided having a first electrode a second electrode, a first , photoactive region having a characteristic absorption wavelength .lambda.1 and a second photoactive region having a characteristic absorption wavelength .lambda.2. The photoactive regions are disposed between the first and second electrodes, and further positioned on the same side of a reflective layer such that the first photoactive region is closer to the reflective layer than the second photoactive region. The materials comprising the photoactive regions may be selected such that .lambda.1 is at least about 10% different from .lambda.2. The device may further comprise an exciton blocking layer disposed …
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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 July 29, 2005 and granted May 19, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 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.
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.