Extended release pharmaceutical formulations with controlled impurity levels
US9687475B1 · kind B1 · utility
0Cited by
20References
5Claims
0Family size
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Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/2866
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides extended release pharmaceutical formulations of valsartan with controlled impurity levels. Particularly, the present invention provides extended release valsartan formulation which is substantially free of valsartan R-isomer impurity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.