Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497771 | Aqueous solution and method for phosphatizing metallic surfaces | Peter Schubach, Joachim Heitbaum, Thomas Kolberg, Peter Jorns, Michael Deemer +3 more | 2002-12-24 |
| 5688340 | Preparation of metal surfaces for vitreous enameling | Dieter Jentsch, Klaus Wittel | 1997-11-18 |