Application member and impregnation material
US11833321B2 · kind B2 · utility
0Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2020 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Nov 16, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An application member includes a stimuli-responsive polymer that reversibly changes to being hydrophilic and to being hydrophobic in response to an external stimulus to allow impregnation and release of an active ingredient to be applied to the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.