Mixed conducting cubic perovskite for ceramic ion transport membrane
CA 2297578 A1 · Owner: Sprenkle, Vincent · Inventors: Chen, Chieh-Cheng; Kaus, Ingeborg; Sprenkle, Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic membrane element for an oxygen separator is formed from a ceramic material represented by the structure:, A1-xA'x B 1-yB'y O 3-z where A is a lanthanide element;, A' is a suitable lanthanide element dopant; B is selected from the group consisting of titanium, vanadium, chromium, manganese iron, cobalt, nickel, zinc and mixtures thereof; B' is copper;, x is between 0.4 and 0.8; y is between 0.1 and 0.9; and, z is > 0 (and determined by stoichiometry). When B includes cobalt in an amount greater than 0.1, the included iron content is less than 0.05. The membrane element selectively transports oxygen ions therethrough at a relatively low temperature, with a flux detected at about …
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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 February 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2022.
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Timeline
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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.