Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789885 | Configuration for forming a ventilation aperture | Helmut Michele, Peter Busch | 2004-09-14 |
| 6692118 | Pierceable sealing element and ink reservoir with pierceable sealing element | Helmut Michele, Peter Busch | 2004-02-17 |