Plasmid DNA clarification
US7700762B2 · kind B2 · utility
1Cited by
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6Claims
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Key dates
| Filing date | Jun 23, 2004 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Jun 23, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/1017
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A clarification system and method of using for plasmid DNA that is centrifugation-free. The system is comprised of a coarse filter, about 50 to about 200 microns pore size, followed by a prefilter of about 1 to about 2 micron pore size and then a final filter of about 0.22 micron. Preferably, the prefilter and final filter are combined into one filter housing to reduce system hold up volume and enhance recovery of the plasmid DNA. The method allows for continuous as well as batch operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.