Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10441522 | Surfactant-containing cleaning agent compositions with specific combinations of four preservatives | Heike Schelges, Barbara Heide, Melanie Rauschenberg | 2019-10-15 |
| 10357442 | Surfactant-containing cleansing agents with at least four different preservatives | Heike Schelges, Barbara Heide, Melanie Rauschenberg | 2019-07-23 |
| 10328001 | Combinations of preservatives for hair dyes | Gabriele Weser, Mustafa Akram | 2019-06-25 |
| 9999582 | Combinations of preservatives for hair colors | Gabriele Weser, Mustafa Akram | 2018-06-19 |