Delivery system controlled administration of beneficial agent to ruminants
US4595583A · kind A · utility
119Cited by
15References
88Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1984 |
| Grant date | Jun 17, 1986 |
| Priority date | — |
| Expiry date | Mar 19, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0004
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dispensing device is disclosed for delivering a beneficial agent. The device comprises (1) a semipermeable housing defining an internal space, (2) a dense member in the space, (3) a heat responsive composition containing a beneficial agent in the space, (4) an expandable member in the space, and (5) a passageway in the semipermeable housing for delivering the beneficial agent from the dispensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.