Contraceptive methods
US4493699A · kind A · utility
7Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1982 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Apr 8, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K31/255
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Long chain alkyl and alkenyl sulfonates, sulfates and sulfoalkyl alkanoate salts, administered intravaginally for contraception.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.