Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4777039 | Pearlescent hair conditioning composition | Gunther Lang, Friedel Schroder, Karin Grundmann | 1988-10-11 |
| 4719930 | Hair treatment and process for hair treatment | Walter Keller | 1988-01-19 |
| 4202881 | Hair shampoo and conditioning lotion | Eugen Konrad, Herbert Mager | 1980-05-13 |