Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11724308 | Refractory ring and refractory ring system and methods for assembling the same | G. Michael Friebel | 2023-08-15 |
| 8919670 | Injection lance with variable swirl | — | 2014-12-30 |