Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11225396 | Shaft hoisting plant having an overwind brake device | Matthias Junge, Lars Rietz, Eduard Haberkorn | 2022-01-18 |
| 6424701 | Method and equipment for intercepting telephone calls | Alain Maillet | 2002-07-23 |