Particle filter having a catalytically active coating to accelerate burning of accumulated soot particles during a regeneration phase
CA 2423772 A1 · Owner: Kreuzer, Thomas · Inventors: Staab, Roger; Kreuzer, Thomas; Lox, Egbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a particle filter to remove soot from the exhaust gas of a diesel engine. The particle filter contains a catalytically active coating, on a filter body to accelerate burn-off during a regeneration phase of the soot particles, collected on the filter. The particle filter comprises a catalytic coating containing, compounds of barium, compounds of magnesium and at least one element of the, platinum group metals. The invention is further directed to a process for accelerated, combustion of soot particles collected on the filter from lean exhaust gas of a diesel, engine in which the soot particles have a soot ignition temperature and the particle alter, …
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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 March 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2025.
- 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
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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.