Method of preparing zinc oxide nanorods on a substrate by chemical spray pyrolysis
CA 2649200 C · Owner: Dedova, Tatjana · Inventors: Krunks, Malle; Dedova, Tatjana; Oja, Ilona
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of preparing nanostructured zinc oxide layers on a substrate by chemical spray pyrolysis at moderate deposition temperatures from 350°C to 600 °C is disclosed. An aqueous or aqueous alcoholic solution comprising zinc chloride or zinc acetate as precursors is prepared and sprayed onto the preheated substrate so that the precursor reacts to form zinc oxide layer on the substrate. Thiourea or urea may be also added to the solution. Glass silicon, or metal oxide covered glass can be used as the substrate.
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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 April 13, 2006 and granted June 30, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 13, 2026.
- 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.