Filtration media for filtering particulate material from gas streams
US7235122B2 · kind B2 · utility
66Cited by
18References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2004 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Oct 1, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D39/1623
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Filtration media are disclosed for use in high efficiency air filters for filtering particulate matter in air. The media make use of at least one layer of fibers having a diameter less than 1000 nanometers sandwiched between two scrim layers to achieve high efficiency particulate air (HEPA) filtration performance at relatively low pressure drops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.