Issued Patents 2024
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12049836 | Valve stem seal comprising a valve rotating device | Frank Zwein, Florian Ringeling, Thorsten Matthias, Stefan Kellermann | 2024-07-30 |
| 11898473 | Method and device for manufacturing hollow, internally cooled valves | Thorsten Matthias | 2024-02-13 |