Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6146619 | Process and agents for permanently shaping keratin fibres | Doris Oberkobusch | 2000-11-14 |
| 4666712 | Cold permanent wave composition | Detlef Hollenberg, Karl Giede, Horst Hoffkes | 1987-05-19 |