Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10870438 | Power car for high-speed train with internal overpressure | Paul Preiss, Pierre Debost, Etienne Grappein | 2020-12-22 |
| 10864925 | Power car for high-speed train | Paul Preiss, Pierre Debost, Etienne Grappein | 2020-12-15 |