Biological alarm
US7591980B2 · kind B2 · utility
16Cited by
71References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2004 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Jun 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0261
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Airborne particles are impacted on a collection surface, analyzed, and then the collection surface is regenerated. Thus, the same collection surface can be used in numerous cycles. The analysis can be focused on one or more properties of interest, such as the concentration of airborne biologicals. Sensors based on regenerative collection surfaces may be incorporated in many networks for applications such as building automation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.