Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11492019 | Tube segment and tube for evacuated tube transport system | Heiko Sportel, Paul Alexander De Vries | 2022-11-08 |
| 7550108 | Metallurgical vessel | Hendrikus Koenraad Albertus Meijer | 2009-06-23 |
| 6273931 | Method for controlling a smelting reduction process | — | 2001-08-14 |