Multilayer test device having fusion bonding attachment layer
US5330715A · kind A · utility
9Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Dec 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/97
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A unitized multilayer dry reagent analytical chemistry test structure and device and method of fabricating such device is described. The device includes two or more contiguous layers of absorbent or porous paper or polymeric material, at least one of which is incorporated with a test reagent composition, the layers attached to each other with intermediate porous attachment layers by fusion bonding. When the device is contacted with the fluid being tested the attachment layers allow the free flow of such fluid from one layer to the next.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.