Crystalline microparticles of a beta-agonist coated with a fatty acid
US10993916B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | May 12, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/064
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Crystalline microparticles consisting of a phenylalkylamino beta2-adrenergic agonist coated with a C12-C20 fatty acid are useful for the preparation of pharmaceutical aerosol formulations in form of suspension in a liquefied propellant gas or powder formulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.