Environmentally reactive labels
US12087183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2021 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Jul 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2003/0208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A label and methods and devices for detecting an environmental factor that exceeds a threshold are described. The label includes a plurality of codable areas. The first portion of the plurality of codable areas are coded according to a first value and the second portion of the plurality of codable areas are coded according to a second value. The label additionally includes an environmentally triggered bubble positioned in one of the plurality of codable areas. The environmentally triggered bubble changes between the first value and the second value when ruptured. As a result, the code that the label represents changes when the environmentally triggered bubble ruptures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.