Process for removing viruses in fibrinogen solutions and fibrinogen obtained by said process
US7442308B2 · kind B2 · utility
7Cited by
7References
16Claims
0Family size
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Key dates
| Filing date | Feb 25, 2004 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jul 16, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K1/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for removing viruses in fibrinogen solutions and fibrinogen obtained thereof wherein the process starts with an adjusted purified fibrinogen solution, the adjusted purified solution is frozen and then thawed at a temperature between 5 and 20° C., the undissolved materials associated with the fibrinogen are subsequently separated, the temperature is adjusted and the resultant solution is finally subjected to nanofiltration using filters having a pore size smaller than 35 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.