Therapeutic agent delivery system
US4894231A · kind A · utility
113Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1987 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Jul 28, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5031
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A therapeutic agent delivery system that includes a biodegradable polymer and a therapeutic agent, the delivery system being coated with a barrier substance that decreases the quantity of the agent released from the system, compared to the quantity of the agent released from a system not coated with the substance, in the forty-eight hours subsequent to the parenteral injection or implantation of the system into a living person or animal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.