Wastewater pollutant sensor
US5030419A · kind A · utility
4Cited by
4References
14Claims
0Family size
Inventors
Key dates
| Filing date | Jun 14, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Jun 14, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/6428
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The presence of certain chemicals on the emitting surface of the surface-derivatized photoluminescent semiconductor alters the characteristics of radiation emitted from said surface. This alteration is used to indicate the presence of those chemicals in the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.