Process for the purification of recombinant human beta interferon, beta interferon thus purified and pharmaceutical compositions which contain it
US5244655A · kind A · utility
7Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Jan 17, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K38/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process is described for the purification of recombinant human beta interferon which comprises the use of three chromatographic stages carried out in series, utilizing as stationary phases: glass particles of controlled porosity, cation exchange polymer resins and polymer resins able to complex heavy metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.