Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468359 | Cleaning method | Manfred Gerlach | 2002-10-22 |
| 6387189 | Surface-cleaning method | Andreas Groschl, Torsten Groth, Volker Hassmann, Jürgen Horn, Ingo Janisch +2 more | 2002-05-14 |