Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657435 | Metal free bleaching composition | Markus Frey, Frederique Wendeborn, Menno Hazenkamp | 2017-05-23 |
| 9533296 | Bleach catalysts | Barbara Winkler, Frederique Wendeborn, Katharina Misteli | 2017-01-03 |