Aqueous solution containing ginkgo leaf extract
US5158770A · kind A · utility
7Cited by
1References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 27, 1990 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K36/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An aqueous solution containing a high concentration of ginkgo leaf extract having good preservability is prepared. The aqueous solution containing ginkgo leaf extract comprises at least 1 weight % of a hydrous organic solvent extract obtained from ginkgo leaf, and further disaccharide alcohols and/or trisaccharide alcohols, and/or organic compounds having a basic nitrogen atom in the molecule and a solubility in water at normal temperature of at least 10 g/100 ml.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.