Constant release system with pulsed release
US4777049A · kind A · utility
141Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1987 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Jan 8, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M31/002
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An osmotic delivery system is disclosed for delivering a useful agent at a controlled and constant rate modulated by a pulsed delivery of the useful agent to an environment of use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.