Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11542565 | Charging system, in particular for a shaft smelt reduction furnace | Patrick Hutmacher, Stefan Schons, Michel Houbart | 2023-01-03 |
| 11306827 | Slide valve | Patrick Hutmacher | 2022-04-19 |
| 11199359 | Sealing valve arrangement for a shaft furnace charging installation | Patrick Hutmacher, Paul Tockert | 2021-12-14 |
| 10502491 | Sealing valve arrangement for a shaft furnace charging installation | Patrick Hutmacher, Yves Heinen, Harald Lang, Paul Tockert | 2019-12-10 |