Issued Patents 2024
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12049571 | Method for treating metallic surfaces with an acidic aqueous composition and a post rinsing composition to improve corrosion resistance | Stefan Birkenheuer, Carina Hecker, Oliver Sauer, Nawel Souad Khelfallah, Marie-Pierre Labeau +1 more | 2024-07-30 |
| 12043753 | Process for corrosion-protecting pretreatment of a metallic surface containing steel, galvanized steel, aluminum, an aluminum alloy, magnesium and/or a zinc-magnesium alloy | Stefan Birkenheuer, Dietmar Chmielewski, Carina Hecker, Oliver Sauer | 2024-07-23 |
| 12043758 | Method for treating metallic surfaces with an acidic aqueous composition to improve corrosion resistance | Stefan Birkenheuer, Carina Hecker, Oliver Sauer, Nawel Souad Khelfallah, Marie-Pierre Labeau +1 more | 2024-07-23 |