Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11834950 | Tunnel lining composed of at least two concrete elements | — | 2023-12-05 |
| 10830043 | Protective element with drainage, for connecting to a concrete element of a tunnel extension | — | 2020-11-10 |
| 10231060 | Electrostatic headphones | Manfred Hibbing | 2019-03-12 |