Plasma sterilization indicator
US6659036B2 · kind B2 · utility
16Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Dec 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a plasma sterilization indicator enabling an accurate detection of the end-point of plasma sterilization. This invention relates to a plasma sterilization indicator comprising a support and, as formed thereon, a color-change layer comprised of a variable color ink composition containing an anthraquinone dye having at least one kind of amino groups, primary and/or secondary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.