Extension of the dynamic detection range of assay devices
US7943395B2 · kind B2 · utility
7Cited by
351References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Nov 23, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/807
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow-through assay device for detecting the presence or quantity of an analyte residing in a test sample is provided. The device utilizes multiple detection zones, one of which is premised on “competitive” binding of the analyte and the other is premised on “sandwich” binding of the analyte. The present inventors believe that the combination of these zones may enable the detection of an analyte over extended concentration ranges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.