Sustained release pharmaceutical preparation
US4990340A · kind A · utility
63Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1990 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | May 14, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/7084
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A sustained release pharmaceutical preparation for percutaenous administration use mainly composed of a drug layer which is a layer made to contain drugs, to have no adhesiveness to the skin, but to be used in contact with the skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.