Copolymer-1 improvements in compositions of copolymers
US6939539B2 · kind B2 · utility
58Cited by
2References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.