Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377971 | Drive unit with gear mechanism and electric drive for a main rotor of a rotary wing craft | Johann Werner Hettenkofer, Andreas Dummel, Andreas Löwenstein | 2025-08-05 |
| 12157561 | Rotorcraft having an electric drive for driving a main and/or tail rotor of the rotorcraft | Johannes Hettenkofer, Andreas Dummel, Andreas Löwenstein | 2024-12-03 |
| 12043374 | Hybrid propulsion system of a helicopter | Johann Werner Hettenkofer, Andreas Dummel | 2024-07-23 |