Controlled release container with core and outer shell
US5916584A · kind A · utility
139Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Jun 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/4816
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A controlled release container includes an outer shell and a separately produced core that comprises at least one bioactive molecule. At least a portion of the outer shell comprises a biodegradable polymeric material that has a predetermined rate of degradation. The outer shell preferably is non-porous and provides a predetermined delay of at least two days from administration of the capsule before release of the active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.