Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6390730 | Protective elements, devices comprising said elements and method for protecting a zone against floods and avalanches | — | 2002-05-21 |
| 6392862 | Overvoltage protection element system | Gerd Kracht, Eberhard Lehmann, Joachim Schimanski, Martin Wetter | 2002-05-21 |