Filter and filter module
US7449110B2 · kind B2 · utility
2Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2004 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Sep 8, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2319/022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The filter 1 of the present invention has at least two filter elements 2 contained in the casing 4, which are connected in series in such a state as interposing the first sealer 5 between them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.