Quaternary ammonium compounds
US6946486B2 · kind B2 · utility
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2References
1Claims
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Assignee
Inventor
Key dates
| Filing date | Oct 17, 2003 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Oct 17, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention features quaternary ammonium compounds of formula I, described herein, and their use in treating asthma, chronic obstructive pulmonary disorder, allergic rhinitis, and infectious rhinitis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.