Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641610 | Method for producing a multi-step structure in a substrate | Johann W. Bartha, Johann Greschner, Gerhard Schmid | 1997-06-24 |
| 5635337 | Method for producing a multi-step structure in a substrate | Johann W. Bartha, Johann Greschner, Gerhard Schmid | 1997-06-03 |
| 4557421 | Paper disintegrator and method of operating same | Kurt Hufken | 1985-12-10 |
| 4459904 | Apparatus for binding bales in a baling press | Kurt Hufken, Zvonko Goricanec | 1984-07-17 |