Process for manufacturing flowable powder drug compositions
US9072664B2 · kind B2 · utility
9Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2009 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Feb 3, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/0075
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Powder drug compositions exhibiting improved flow properties are manufactured by spraying a suspension of surface-modified nanoparticles having an average particle size diameter of less than 100 nm in a dryable liquid carrier onto particles of a powder ingredient of a drug composition. The liquid carrier is rapidly dried so as to leave the nanoparticles on the powder. Other ingredients of the powder drug composition can also be added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.