Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835508 | Large-area membrane mask and method for fabricating the mask | Jörg Butschke, Albrecht Ehrmann, Ernst Haugeneder, Frank-Michael Kamm, Florian Letzkus +1 more | 2004-12-28 |
| 6696371 | Method for fabricating positionally exact surface-wide membrane masks | Joerg Butschke, Albrecht Ehrmann, Ernst Haugeneder, Florian Letzkus | 2004-02-24 |