Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11850655 | Process and device for manufacturing hollow, internally cooled valves | Thorsten Matthias, ANTONIUS WOLKING | 2023-12-26 |
| 11732622 | Method for producing a hollow valve with an optimised interior stem geometry for internal combustion engines | Thorsten Matthais, ANTONIUS WOLKING | 2023-08-22 |
| 11654471 | Method for producing a hollow valve for internal combustion engines | Thorsten Matthias, ANTONIUS WOLKING | 2023-05-23 |