Powder composition for inhalation therapy
US4009280A · kind A · utility
33Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1975 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Jun 9, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P11/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A powder composition comprising a mixture of the di-sodium salt of 1,3-bis(2-carboxychromon-5-yloxy) propan-2-ol having a mass median diameter in the range of 2 to 4, preferably 2.5 to 3.5 microns and a solid carrier acceptable in the lungs and having a particle size in the range of from 30 to 150 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.