Controlled-release solid preparation with partial coating
US10413514B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2015 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/573
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed is a controlled-release solid preparation, which consists of an internal core and a coating layer, wherein part of the surface of the internal core is not covered with the coating, and is exposed to the surface of the solid preparation. Since the medicament just releases at the exposed part, the aim of controlled release can be achieved by controlling this exposed surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.