Optical pH sensor
US7835003B2 · kind B2 · utility
7Cited by
33References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2005 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Dec 20, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor for pH is described using a cross-linked network of bisilanes to immobilize a pH sensitive chromophore to a surface potentially exposed to a high pressure, high temperature environment such as wellbore effluents at a downhole location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.