Sustained release of encapsulated molecules
US4923645A · kind A · utility
50Cited by
10References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5073
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for sustained release of molecules from gels or microcapsules has been developed. The method is based on controlling the gel state using chelating agents or ion transfer. The method is particularly useful for controlling the rate of release of insolubilized proteins into physiological solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.