Porous particle and method for producing the same, and pharmaceutical composition
US11654116B2 · kind B2 · utility
1Cited by
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6Claims
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Key dates
| Filing date | Jun 23, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/56
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A porous particle, wherein the porous particle has a mass median aerodynamic diameter and a volume average particle diameter that satisfy expression: y≥2x, where x denotes the mass median aerodynamic diameter and y denotes the volume average particle diameter, and the porous particle has a relative span factor (R.S.F) that satisfies expression: 0<(R.S.F)≤1.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.