Issued Patents 1997
Showing 1–2 of 2 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 |