Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11578419 | Aqueous, alkaline electrolyte for depositing zinc-containing layers onto surfaces of metal piece goods | Anders Skalsky | 2023-02-14 |
| 7314671 | Chromium(VI)-free conversion layer and method for producing it | Rolf Jansen, Peter Hulser | 2008-01-01 |
| 6946201 | Chromium (VI)-free conversion layer and method for producing it | Rolf Jansen, Peter Hulser | 2005-09-20 |
| 6287704 | Chromate-free conversion layer and process for producing the same | Rolf Jansen, Peter Hulser | 2001-09-11 |