Devices and methods for controlling headspace humidity and oxygen levels
US10201612B2 · kind B2 · utility
0Cited by
110References
20Claims
0Family size
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Key dates
| Filing date | Sep 5, 2017 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Sep 5, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A humidity control device for use in maintaining the desired humidity of a closed environment, e.g., a container, while also decreasing headspace oxygen, the device including a water vapor and oxygen permeable pouch, an aqueous salt solution containing humidity controlling salts in combination with salts of ascorbic acid or isomers thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.