Non-entraining filter
US5863312A · kind A · utility
26Cited by
19References
14Claims
0Family size
Inventor
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/35
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A face mask for covering a wearer's mouth, nose or both, with a single layer non-entraining filter medium which repulses or rejects particulate matter rather than catching or entraining particulate matter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.