Sustained release compositions and the process for their preparation
US6475507B1 · kind B1 · utility
9Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to compositions in the form of microcapsules or implants comprising a biodegradable polymeric or copolymeric excipient or a mixture of such excipients with an inherent viscosity of between 0.5 dl/g and 1.6 dl/g in CHCl3, and one active substance or a mixture of active substances, it being possible for said microcapsules or implants to release the active substance or mixture of active substances over a prolonged period of up to three months or more. These compositions may also comprise an active principle having a high specific surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.