Multilayer dissolvable solid article with apertures or holes
US12065627B2 · kind B2 · utility
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26References
20Claims
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Key dates
| Filing date | Jul 7, 2021 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Dec 4, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dissolvable solid article is provided, which is characterized by a multilayer structure formed of two or more flexible and dissolvable sheets that each comprises a water-soluble polymer. Such dissolvable solid article is at least 2 mm thick and contains one or more through-apertures or through-holes with a width or diameter of 0.2-0.8 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.