Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8867129 | Sighting telescope | Helke Karen Hesse, Christoph Hilmar Graf vom Hagen | 2014-10-21 |
| 8804237 | Sighting telescope with high shooting reliability under different conditions | Helke Karen Hesse, Christoph-Hilmar vom Hagen | 2014-08-12 |