Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9802249 | Ceramic refractory stopper | Gerald Nitzl, Arno Stranimaier, Helmut Kaufmann | 2017-10-31 |
| 9757799 | Submerged entry nozzle | Gerald Nitzl | 2017-09-12 |
| 9302321 | Ceramic refractory stopper | Gerald Nitzl, Arno Stranimaier, Helmut Kaufmann | 2016-04-05 |