Co sensor and method of measuring co concentration
CA 2366638 A1 · Owner: Ngk Spark Plug Co. Ltd. · Inventors: Ishida, Noboru; Oshima, Takafumi; Kondo, Tomonori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To provide a CO sensor and a CO-concentration measurement method which enable accurate measurement of CO concentration even when hydrogen concentration, of a gas under measurement changes. Through application of a first predetermined, voltage between first and second electrodes 7 and 8 hydrogen contained in a , gas, under measurement which has been introduced into a first measurement space 2 via a, first diffusion-controlling section 1 is dissociated decomposed, or reacted , with, another element in order to generate protons. The thus-generated protons are moved, from the first electrode 7 to the second electrode 8 via a first protonconductive layer, or protons are moved from the second …
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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 January 4, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2024.
- 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.