Sustained release ionic conjugate
US6911218B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1997 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Apr 22, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of spherifying a sustained release ionic conjugate which contains a free carboxyl group-containing biodegradable polymer and a free amino group-containing drug which are ionically bonded to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.