Radiographic compositions
US4176173A · kind A · utility
8Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1977 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Jul 18, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/62
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Radiographic contrast media preparations suitable for use with high-energy x-ray sources and useful for intestinal tract studies and, in particular, computerized tomography are disclosed. The disclosed preparations comprise aqueous solutions of stable, non-toxic complexes of hafnium and tantalum with certain organic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.