Polymeric acid contraceptive devices
US4360013A · kind A · utility
22Cited by
5References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A disposable non-woven sponge vaginal contraceptive device is made of alginic acid or related polysaccharides bearing carboxylic acid functionality and a method of making same is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.