Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5568724 | Turbofan engine with means to smooth intake air | Ernst Lindner, Guido W. Trittler | 1996-10-29 |
| 5137425 | Propfan engine having two oppositely rotating fan rotors | Alois Rohra, Martin Cempirek | 1992-08-11 |