Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5453875 | Monocular telescope having a focusing unit whose mechanical sensitivity can be varied | Lothar Kolsch, Alfred Hengst | 1995-09-26 |
| D332106 | Pair of binoculars | Alfred Hengst, H. Peter Farnung, Heinrich Janke | 1992-12-29 |
| D332107 | Pair of binoculars | Alfred Hengst, H. Peter Farnung, Heinrich Janke | 1992-12-29 |
| 4998357 | Binocular telescopr with radially acting compensating spring | H. Peter Farnung, Alfred Hengst | 1991-03-12 |
| 4989963 | Binocular telescope with coupled joint focusing and uncoupled separate focusing | H. Peter Farnung, Alfred Hengst | 1991-02-05 |
| 4610476 | Carrying strap mounting | — | 1986-09-09 |
| D272361 | Binocular | Alfred Hengst, Heinrich Janke, Hans-Kurt Uellenberg | 1984-01-24 |
| D272362 | Binocular | Alfred Hengst, Heinrich Janke, Hans-Kurt Uellenberg | 1984-01-24 |