Stabilized photoprotective composition
US7244416B2 · kind B2 · utility
14Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2003 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Jul 11, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Sunscreen compositions contain the active ingredients avobenzone, zinc oxide and phenylbenzimidazole sulfonic acid. The phenylbenzimidazole sulfonic acid protects avobenzone against photodegradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.