Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5581897 | Plier-type can opener | — | 1996-12-10 |
| 4546512 | Mechanical sweeper | Rolf G. Schulein | 1985-10-15 |
| 4420904 | Device for feeding potted plants | Siegfried Joswig, Peter Keils, Peter Tiwi | 1983-12-20 |
| 4247054 | Arrangement for comminuting foodstuffs | Rolf G. Schulein, Dieter Himmighofen | 1981-01-27 |
| 4207641 | Carpet sweeping device | Rolf G. Schulein | 1980-06-17 |