Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5560343 | Pressure-limiting valve | Karl-Heinz Werkmann, Frank Reiter, Ivan Grgec-Messner | 1996-10-01 |
| 4730650 | Device for determining the fluid level in a container and container having such a device | Klaus Ziegler | 1988-03-15 |