Drug delivery system
US4904479A · kind A · utility
252Cited by
10References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1987 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jan 15, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5031
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Particles of a drug are directed away from the reticuloendothelial system by the use of surface coating and surface grafting techniques which substantially prevent the take up of the composite particles by the liver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.