Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5949897 | Sound reproduction device with active noise compensation | Burkhard Markmann | 1999-09-07 |
| 5809156 | Sound reproduction device with active noise compensation | Burkhard Markmann | 1998-09-15 |
| 5561262 | Spin-stabilized carrier projectile | Klaus D. Karius | 1996-10-01 |
| 5239927 | Deceleration device for submunition | Gunter Frye, Karl-Heinz Vogt | 1993-08-31 |