Semiconductor nanocrystalline materials and their uses
CA 2391130 C · Owner: Cao, Yun-Wei · Inventors: Cao, Yun-Wei; Banin, Uri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to new semiconductor composite nanocrystal materials having desirable luminescent properties specifically high quantum yields and , good photochemical stability with specific desirable emittance wavelengths, preferably in the near infrared. The invention further relates to various applications in optical, electrical, electro-optical and laser devices particularly in the field of telecommunication of these new semiconductor , composite nanocrystal materials.
Read the whole patent
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 3, 2001 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 3, 2023.
- 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.