Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637803 | Device for monitoring the pressure in several analysis vessels | Peter Kettisch, Johannes Zach, Helmut Sinabell | 1997-06-10 |
| 5601745 | Microwave oven with temperature and pressure measuring device | Peter Kettisch, Helmut Sinabell, Johannes Zach | 1997-02-11 |