Exhaust gas purification system and catalyst therefor
US5571763A · kind A · utility
12Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1993 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Jun 2, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An engine exhaust gas purifying catalyst contains, as active substances, platinum and at least one of iridium, III-B metals and IV-B metals. In particular, the catalyst contains mainly platinum and iridium and, desirably, rhodium as an additive catalyst substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.