Filtration
US6486306B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1996 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y304/21022
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Filtration methods comprise virus-filtering a solution containing a least one macromolecule. In one embodiment, the total salt content of the solution is within the range of from about 0.2 M to 2 M. In another embodiment, the total salt content of the solution is within the range of from about 0.2 M up to saturation with a salt, and the salt is selected from the group consisting of sodium chloride, potassium chloride, sodium acetate, sodium citrate, sodium phosphate, potassium dyhydrophosphate and combinations thereof. In yet another embodiment, the total salt content of the solution is within the range of from about 0.2 M up to saturation with the salt and the macromolecule is in solution during the virus filtering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.