Photo-reactive polymers and devices for use in hair treatments
US7550136B2 · kind B2 · utility
28Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/81
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides new methods to treat hair to achieve a permanent wave, curl, or straightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.