Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11686000 | Composition and method for the chromium-free pretreatment of aluminium surfaces | Heiko Hellmers, Norbert Maurus | 2023-06-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11686000 | Composition and method for the chromium-free pretreatment of aluminium surfaces | Heiko Hellmers, Norbert Maurus | 2023-06-27 |