Spray freeze dry of compositions for pulmonary administration
US7923029B2 · kind B2 · utility
1Cited by
13References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2003 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jun 13, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention provides methods and compositions to preserve bioactive materials, such as viruses, bacteria, cells, or liposomes, in freeze dried particles suitable for pulmonary administration. Methods provide spray freeze drying of formulations to form stable freeze dried particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.