Covalently-modified neutral bacterial polysaccharides, stable covalent conjugates of such polysaccharides and immunogenic proteins and methods of preparing such polysaccharides and conjugates
US4830852A · kind A · utility
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11Claims
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Key dates
| Filing date | Apr 6, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Apr 6, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/831
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Covalently-modified neutral bacterial polysaccharides; covalent conjugates of such polysaccharides linked by a bigeneric spacer, with immunogenic bacterial membrane or other proteins, which conjugates are useful components of bacterial vaccines; and methods of preparing such polysaccharides and conjugates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.