Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5631003 | Hair treatment prepartation | Kurt Seidel, Detlef Hollenberg | 1997-05-20 |
| 5612024 | Cosmetic preparations for the hair | Karl Giede, Kurt Seidel, Detlef Hollenberg | 1997-03-18 |