Exhaust gas purification catalyst
US8227374B2 · kind B2 · utility
10Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Apr 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides an exhaust gas purification catalyst comprising one or more catalyst coating layers having platinum and/or palladium with rhodium supported on a carrier, characterized in that the (platinum and/or palladium)/rhodium weight ratio is 1.0 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.