Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10667998 | Odor-reduced bleaching | Hartmut Manneck, Matthias Schweinsberg | 2020-06-02 |
| 10596097 | Method for multi-tonal color modification of keratinous fibers | Hartmut Manneck, Matthias Schweinsberg | 2020-03-24 |