Powders comprising anti-adherant materials for use in dry powder inhalers
US6475523B1 · kind B1 · utility
59Cited by
7References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/145
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A powder for use in a dry powder inhaler comprises active material and additive material. The additive material comprises an anti-adherent material and the powder includes at least 60% by weight of active material. The inclusion of the additive material in the powder has been found to give an increased respirable fraction of the active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.