Dispenser comprising inner positioned soft or hard capsule
US4692326A · kind A · utility
7Cited by
27References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Feb 14, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M31/002
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dispenser is disclosed for delivering a beneficial agent to an environment of use. The dispenser comprises a semipermeble wall surrounding a compartment containing a heat responsive composition, and an expandable composition. A passageway in the wall connects the compartment with the exterior of the dispenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.