Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844711 | Hair colorants and methods of coloring hair | Klaus Korbacher, Karl-Heinz Schrader | 1989-07-04 |
| 4839165 | Cosmetic agents for hair | Walter Engel | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844711 | Hair colorants and methods of coloring hair | Klaus Korbacher, Karl-Heinz Schrader | 1989-07-04 |
| 4839165 | Cosmetic agents for hair | Walter Engel | 1989-06-13 |