Exhaust gas purification catalytic device
US12030038B2 · kind B2 · utility
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28References
7Claims
0Family size
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Key dates
| Filing date | May 11, 2020 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Nov 13, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2570/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purification catalytic device includes: a substrate; at least one type of noble-metal catalyst that is supported on the substrate; and a coating layer on the surface of the substrate. The substrate includes a plurality of cells which are demarcated by porous walls. The substrate and the coating layer each include ceria-zirconia composite oxide particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.