Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360454 | Tanning of leather and fur | Knut Oppenlaender, Hermann Birkhofer, Brigitte Wegner, Johannes P. Dix | 1994-11-01 |
| 4651869 | Apparatus having a vibratory drive for the feeding of workpieces in rows | — | 1987-03-24 |
| 4239120 | Device for the bunkering and assorted feeding of small parts | Klaus Stecklum | 1980-12-16 |